# SDR DL72S990552

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 16, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N531DA](https://openairdocs.org/aircraft/N531DA), registered now
- Make and model: Boeing 727232
- Aircraft serial: 21814
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Rib
- Part number: 6483385
- Condition: Cracked
- Location: Ws 171.5
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL72S990552

## Discrepancy

THE UPPER CHORD ANGLE OF THE LEFT WING RIB AT WS 171.5 WAS FOUND CRACKED.  THE CRACK WAS LOCATED AT A FASTENER HOLE ON THE HORIZONTAL FLANGE OF THE CHORD ANGLE UNDER S16.  REPAIRED PER ERA 332872-14, REV B.

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