# SDR 2001UALA00447

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2001
- Submitted: April 18, 2001
- Operation: Air carrier
- Aircraft: [N791UA](https://openairdocs.org/aircraft/N791UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26933
- Aircraft time: 16,497 hours, 2,629 cycles
- Engine: Pwa PW4090
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Stiffener
- Part number: 141W8519
- Condition: Cracked
- Location: Fuselage
- Part time: 16,497 hours, 2,628 cycles
- 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/2001UALA00447

## Discrepancy

STA. 246 BUCKLED FWD STIFFENER AT:LBL - 7.88  RBL - 7.88  STA. 246 CRACKED FWD STIFFENER AT:  RBL 26.06 SUPPLEMENTAL DATA UPDATE REPLACED STIFFENERS PER SRM 53-10-51, REPAIR 3.

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