Attachment 3: LAD-LPHUD Repair Definitions

Attachment 03
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No Fault Found (NFF) / Could Not Duplicate (CND) / Test, Teardown, & Evaluate

(TT&E) (ACL-001A-00, ACH-801A-00, ACH-001A-00, ACH-802A-00) - The NFF

defined as Seller can’t duplicate the reported/inducted anomaly and TT&E defined as initial test and evaluation by Seller.
o Perform incoming visual inspection
o Perform Acceptance Test Procedure (ATP)
 For the LPHUD (ACH-801A-00) this process should include additional supplier-developed engineering testing developed during the power-on failure investigation
o In case of unverified failure report, perform all NFF environmental and ESS procedures
LAD Minor Repair (ACL-001A-00) - The repair is classified as Minor if any of the following or a combination occurs:
o Perform incoming ATP and evaluation
o Removing / replacement of superficial components such as the TS bezel (PN), left/right bezels (103261D-00 (left), 103262D-00 (right)), bottom bezel (103263C-00), solar guard (PN), touch guards (PN) and installation screws. • Cleaning of Fiber Optics
o Adherence to guidelines in technical manual NAVAIR 01-1A-505-4 Change 1 15-August-2021 for Installation and Repair Practices for Aircraft Fiber Optic Cables (Section 8.01, Tables 1-2)
o Perform additional trouble shooting if required (Vibration and Thermal Testing, 1 cycle per Seller’s approved procedure)
o Perform ATP after repair (part of formal sell-off process using approved procedures)
o Note: No ESS testing is required for Minor Repairs (part of formal sell-off process)
LAD Major Repair (ACL-001A-00) - The repair is classified as Major if effort applicable to repairing item occurs in any combination of the following: o Perform incoming ATP and evaluation
o Involves opening of the Rear cover or the Display Head Assembly o Disconnections of internal wiring harnesses
o Disconnection, replacement, and repair of Shop Replaceable Assemblies (SRAs) o Replacement of Fiber Optics and/or connectors.
o Perform extensive/multiple trouble shooting (Vibration and Thermal Testing, 1-3 cycles max.).
o Perform ESS – Part of formal sell-off process using approved procedures. o Perform ATP after repair - part of formal sell-off process using approved procedures
o Any combination of minor and major repairs will fall under the category of a major repair.

Attachment 03
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LPHUD Minor Repair (ACH-801A-00) - The repair is classified as Minor if any of the following or a combination occurs:
o Perform incoming ATP and evaluation