# SDR UALA2011070603342

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2011
- Submitted: July 21, 2011
- Operation: Air carrier
- Aircraft: [N220UA](https://openairdocs.org/aircraft/N220UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30223
- Aircraft time: 42,297 hours, 5,249 cycles
- Engine: Pwa PW40903
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Strip
- Part number: 313W38294
- Condition: Cracked
- 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/UALA2011070603342

## Discrepancy

NR 2 ENGINE, NR 4 PYLON HEAT SHIELD GAP STRIP HAS 1-4" CRACK EXTENDING FROM PREVIOUS REPAIR.  BLENDED GAP STRIP PER MT 777 54-UA02.  FINISHED BLENDING MEASUREMENTS ARE .25" DEEP AND 4 7-8" LONG.  ACP'D EDDY CURRENT CHECK OF BLENDED AREA.  NO CRACK INDICATIONS NOTED.  THIS TIME LIMITED REPAIR ON THE FOURTH GAP COVER STRIP P/N 313W3829-4 IS ACCEPTABLE UNTIL 2-5-2012 AT WHICH TIME THE GAP COVER STRIP MUST BE REPLACED PER UA-EVA-81002.

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