# SDR 2003UALA00651

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2003
- Submitted: September 2, 2003
- Operation: Air carrier
- Aircraft: N177UA
- Make and model: Boeing 747422
- Aircraft serial: 24384
- Aircraft time: 55,507 hours, 6,994 cycles
- Engine: Pwa PW4056
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Rib
- Condition: Cracked
- Location: Lt Wing
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2003UALA00651

## Discrepancy

LT WING TRAILING EDGE WBL 445.94 RIB 65B08150-99 HAS A CRACK IN THE VERTICAL FLANGE BETWEEN 2 FASTENERS.  DAMAGE CAN BE VIEWED FROM OUTBOARD END OF INBOARD FLAP WELL BELOW 65B07818 MIDFLAP DEFLECTOR RAMP.

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