# SDR UALA2011120606692

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2011
- Submitted: December 8, 2011
- Operation: Air carrier
- Aircraft: [N787UA](https://openairdocs.org/aircraft/N787UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26939
- Aircraft time: 64,536 hours, 9,462 cycles
- Engine: Pwa PW40903
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Heat Shield
- Condition: Damaged
- Location: Nr 4 Pylon
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011120606692

## Discrepancy

NR 2 ENGINE, HEAT SHIELD NR 4 AND NR 5 NEED NDT REMAINING THICKNESS AND HFEC FOR CRACKS.  ACCOMPLISHED HFEC AS REQUIRED ON AREAS AFTER BLENDING REF NDT MANUAL PART 6 51-00-06.  NO CRACKS FOUND.  ALSO PERFORMED ULTRASONIC REMAINING THICKNESS REF NDT MANUAL PART 4 51-00-10 PROCEDURE 2.  NR 4 HEAT SHIELD REMAINING THICKNESS .39 INCH AND NR 5 REMAINING THICKNESS .048 INCH.

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