JAP 100A 01 Chap 7.5.1-UNCONTROLLED COPY WHEN PRINTED-Narrative Fault Reporting Using the MOD Form 760 Series

Most faults with aircraft and equipment in the Military Air Environment (MAE) are resolved by repair or replacement of components, accompanied by routine reporting procedures as described in Chapter 7.5. Some faults, however, warrant a deeper, more detailed investigation to isolate the cause and/or explain an unexpected failure. In addition to routine fault reporting, the MOD F760 Narrative Fault Report is used to provide the additional information needed to undertake this investigation. This chapter describes the occasions for, and methods of, raising Narrative Fault Reports and defines how these reports are to be handled and the faults investigated.

1.2 Associated publications

This chapter is associated with following publications:

1 4JSP 886 – The Defence Logistics Support Chain Manual.3

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2 Policy for reporting faults using the MOD Form 760

In addition to recording faults routinely on the MOD Form 707 series of forms, when it is considered that a fault warrants a more in-depth investigation, a narrative report is to be raised using the MOD F760 Narrative Fault Report procedure.

If a fault presents a serious threat to airworthiness, a Serious Fault Signal (SFS) is to be raised, as detailed in Chapter 7.5.2.

3 Exclusions and/or additional reporting requirements

The ranges of aviation equipment wholly or partly exempt from the MOD Form 760 fault reporting procedure are described in Chapter 7.5.

4 Classification of equipment

4.1 Not-in-use (NIU) equipment

Not-in-use (NIU) equipment is defined as equipment that has not been put to its intended use. The term embraces new, reconditioned, recalibrated, or repaired equipment (except equipment repaired by the user) up to the stage of satisfying any initial visual, dimensional, functional or installation checks, including flight testing where appropriate, following its issue from store.

4.2 In-use (IU) equipment

In-use (IU) equipment is defined as all equipment that cannot be classed as NIU.

Note:

All faults on Aircraft Integrity Monitoring equipment are to be classified as IU.

5 Fault reporting implementation

5.1 Occasions for raising a Narrative Fault Report

According to circumstances, Stns/Ships/Units are to report faults by SFS and/or MOD F760. An MOD Form 760 is to be raised on the following occasions:

1 Automatically, in support of an SFS.

2 At the discretion of the responsible officer when it is considered that the fault may affect safety, equipment availability or performance or where it is considered worthy of detailed investigation.

3 For any fault in NIU equipment.

4 On faults which are considered by local management to merit Integrated Project Team (IPT) attention.

5 When instructed to do so by, or on behalf of, an IPT in a Special Instruction (Technical) (SI(T)) or Mandatory Fault Reporting Instruction (MFRI),4paragraph 6 refers,3or in any other instruction.

6 When instructed to do so by a Board of Inquiry.

5.2 Forms in the MOD Form 760 series

The MOD Form 760 Narrative Fault Reporting System comprises the following forms:

1 MOD F760 – Narrative Fault Report.

2 MOD F760A – Fault Investigation Request.

3 MOD F760B – Narrative Fault Report – Request for MFRI Action.

4 MOD F760C – Compilation Instructions for MOD Form 760.

5 MOD F760E – Faulty Equipment Label.

6 MOD F760F – Narrative Fault Report Transit Folder.

7 MOD F761 – Fault Investigation Report.

8 MOD F761A – Overhaul/Investigation Report.

4Where a form is passed by e-mail between organizations for action, a facsimile signature should not be used in any signature block. Organizations documenting their action are to place a signed copy on file and annotate “File Copy Signed” in the relevant block of the e-mailed version.3

5.3 Responsibility for raising MOD Form 760

The following personnel are responsible for raising MOD F760:

1 The person holding the faulty aircraft or equipment on charge at the time a reportable fault is discovered.

2 The investigating officer of an aircraft accident or other investigation where equipment or parts of the aircraft have been removed for further investigation.

5.4 Compiling and progressing MOD Form 760

The MOD F760 is to be compiled following the instructions given in the MOD F760C. The flow chart at Figure 1 provides guidance on handling and progressing narrative fault reports and reflects the Engineering Authority (EA) and Post-Design Services (PDS) functions embedded within an IPT. Detailed arrangements for a specific aircraft type or range of equipment may vary slightly from the processes illustrated, but will not normally alter any of the principles implicit in the guidance shown. Further details of arrangements for specific aircraft or equipment can be obtained from the appropriate IPT

6 Mandatory Fault Reporting Instruction (MFRI)

MFRIs are issued and managed internally by the IPT when MOD Forms 760 are required on specific items of equipment. IPTs may seek the advice of their maintenance data organization: Supply Chain Support (Programmes), Management Information Branch (SCS(Progs) MI) or Rotary Wing Support Group (RWSG). Limited fault statistics may be provided by maintenance data organizations; hence the use of MFRIs should be restricted to the following:

1 Monitoring the performance of new equipment.

2 Validating current lifing policies.

3 Monitoring the effectiveness of modifications or SI(T).

4 When further information is required to supplement fault case histories.

MOD Form 760B may be used to formally task the person within the IPT that is responsible for internal management of MFRIs. An MFRI can be set either for a period of time or for a number of arisings and may be restricted to particular units. IPTs are to publish MFRIs for their aircraft in the Topic 2(N/A/R)1. MFRIs replace the RN equipment Black List and the Army Mandatory Fault Reporting List; however, the function remains unchanged.

7 Handling, quarantine and disposal of faulty equipment

All equipment subject to MOD F760 action is to remain quarantined pending receipt of disposal instructions. The MOD Form 760 originator is responsible for quarantining or arranging the quarantine of faulty items. Items are to be maintained in the condition existing at the time of failure. Blanks should be fitted to pipeline connections and orifices and measures taken to protect the items in transit. Samples of foreign matter, fuel, oil, etc, should be taken, quarantined and despatched with the faulty equipment. The following forms are to be attached to the faulty equipment:

1 Completed MOD F731 – Equipment Label (to include the serial number of the relevant MOD Form 760).

2 Completed MOD F760E – Faulty Equipment Label.

3 A copy of the MOD Form 760, if unclassified.

4 The Engineering Record Card, if applicable.

Def Stan 05-123 Part 4 details the disposal instructions for materiel under quarantine. In essence the originator of the MOD Form 760 or the custodian of the faulty equipment will be advised of disposal instructions by the Investigation Agency issuing a Call Forward Instructions Signal (CFIS).

8 Responsibilities for MOD Form 760 fault reporting

8.1 Detached or embarked Sqn/Unit or Flight

When a reportable fault is discovered on an aircraft or equipment while detached or embarked, the Sqn/Unit or Flight is to:

1 Carry out an initial investigation of the fault, consulting the parent Stn/Ship/Unit engineering staff as necessary.

2 Complete as much as possible of the MOD F760; if the unit does not hold an MOD Form 760 register, the reference is to be left blank for completion by the parent Stn/Ship/Unit.

3 Dispatch a copy of the MOD Form 760 to the parent Stn/Ship/Unit.

4 If unclassified, attach a copy of the MOD Form 760 to the faulty item.

5 Dispatch the faulty item to the parent Stn/Ship/Unit for quarantining. Guided weapons should be returned to the nearest armament depot.

Note:

Where appropriate, detached embarked units/flights may route MOD Forms 760 through their parent sqn who may then complete some of the tasks listed below prior to forwarding the MOD Form 760 to the parent Stn/Ship/Unit for completion.

8.2 Parent Stns/Ships/Units

Parent Stns/Ships/Units are responsible for:

1 Processing MOD F760 for faults arising on the Stn/Ship/Unit.

2 Processing MOD Form 760 received from detached and embarked Sqns/Units or Flights including the following:

2.1 If required, carrying out further investigation of the fault.

2.2 Completing the MOD Form 760, if necessary inserting the fault report reference.

2.3 Distributing the MOD Form 760 in accordance with Figure 1.

3 Quarantining faulty equipment, including that received from detached or embarked Sqns/Units or Flights, until receipt of disposal instructions.

4 Dispatching faulty equipment and informing the investigation agency of dispatch details.

8.3 Integrated Project Team (IPT)

8.3.1 Action on receipt of MOD Form 760

The EA within an IPT is the focal point for fault investigation on equipment for which they are responsible. An IPT that receives an MOD F760 is to:

1 Within 10 working days, acknowledge receipt to the MOD F760 originator.

2 Within 28 days of the MOD F760 originating date, decide whether or not an investigation is required and:

2.1 Record that decision on the MOD F760.

2.2 Arrange initial investigation of the fault and the instigation of remedial action as deemed appropriate.

2.3 Notify the decision to the originating unit and other MOD F760 addressees.

3 Consider whether a fault justifies mandatory reporting and take the appropriate action.

4 Decide whether a fault case history is required and, if so, ask their maintenance data organization to provide one.

5 Inform the appropriate Defence Storage Distribution Centre (DSDC) of any engineering requirement to examine or quarantine depot stocks.

If an IPT decides that further investigation is not required, the MOD Form 760 is to be completed accordingly. If an IPT decides that further investigation is required, a suitable investigation agency is to be tasked to carry out the investigation. Staffing of the MOD Form 760, MOD F760A and MOD F761 is to follow the flow chart at Figure 1. On receipt of an MOD Form 761, Fault Investigation Report, from an investigation agency, the IPT is to consider the findings and recommendations and is to initiate any remedial action considered necessary. If an IPT is not satisfied with the investigation, or considers that further investigation is warranted, the original MOD Form 760A and MOD Form F761 are to be completed; a new investigation agency is to be appointed, if appropriate, and a new MOD Form 760A is to be raised and clearly marked:

‘FURTHER INVESTIGATION’

Copies of the new MOD Form 760A and the original MOD Form 760 and MOD Form 761 are to be distributed as shown in Figure 1.

8.3.2 Decision not to take action on a fault report or to reject proposed remedial actions

A decision not to take action in response to a reported fault, whether by MOD F760, SFS or following an aircraft incident/accident reported by RN Form A25/A25A, AAC Form 5/5A or RAF F765B, or to reject remedial actions proposed by an appointed investigation agency are not to be taken lightly. IPT Leaders are to ensure that such decisions are made and recorded by a holder of the appropriate level of Letter of 4Authority3.

8.3.3 Advising other affected platform and commodity IPTs

Platform IPT Leaders are vested with prime responsibility for maintaining the airworthiness, performance and safety of a platform. Such responsibility encompasses sub-systems and equipment (commodities) essential to and installed in, loaded to, or carried/worn in the platform. Accordingly, IPTs responsible for these sub-systems (commodities) are to formally advise platform IPTs of any engineering changes or faults that may affect the operation of aviation equipment under their control and which may in turn affect the airworthiness or safety of the platform. Similarly, platform IPTs are responsible for informing commodity IPTs of any changes to the platform that may impact the safety of commodity items.

8.4 Actions by Defence Storage and Distribution Centre (DSDC)

For NIU equipment, the appropriate DSDC is responsible for providing specialist advice to the IPT. On receipt of the MOD F760, and only when instructed by the IPT, the DSDC is to:

1 Confirm that the MOD Form 760 relates to:

1.1 An NIU item.

1.2 An item that is within the DSDC’s sphere of responsibility.

Note:

If either condition is not met, the IPT is to be informed and the form returned.

2 Provide an initial appraisal of the fault.

3 Examine existing stock to determine the extent of the fault and quarantine stock as necessary.

4 Act as an investigation agency and carry out a fault investigation. Unless the IPT specifically authorizes otherwise, the work done during an investigation is not to exceed the depth of maintenance normally carried out on an item by the DSDC.

DSDC recommendations are to be recorded on the relevant MOD Form 760, which is to be sent to the IPT. DSDCs are not to undertake fault investigations without direction from the IPT.

8.5 Investigation agency responsibility and procedures

An investigation, instigated by the IPT, may be conducted either in Service, in industry or by a DSDC. Where industry is used through a PDS contract, the procedures given in Def Stan 05-123 Part 4 should be followed. The Investigation Agency is to notify the IPTL if the faulty materiel has not been received within 28 days of raising the CFIS. The results of the investigation are to be forwarded to the IPT for endorsement on MOD F761 or MOD F761A. Once satisfied with the conduct and findings of the investigation, the IPT is to circulate the MOD Form 761 or MOD Form 761A to the originator and other interested parties.

9 References

This chapter refers to the following publications and forms:

1 AAC Form 5 – Air/Ground Occurrence Investigation Report.

2 AAC Form 5A – Air/Ground Occurrence Investigation Report.

3 Def Stan 05-123 Part 4 – Supply of Technical Information.

4 RAF F765B – Flight Safety Investigation Report.

5 RN Form A25 – Report on Aircraft Accident/Incident.

6 RN Form A25A – Report on Aircraft Ground Accident/Incident.

7 Topic 2(N/A/R)1 – General Orders and Special Instructions.

10 Guidance on completion of MOD Form 760

Figure 1. Process for Fault Reporting Using the MOD Form 760 Series of Forms.