# SDR KNN2008F00002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2008
- Submitted: October 3, 2008
- Operation: Air carrier
- Aircraft: N977UA
- Make and model: Boeing 737291
- Aircraft serial: 21508
- Aircraft time: 63,159 hours, 54,519 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- Condition: Cracked
- Location: Bs 178
- 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/KNN2008F00002

## Discrepancy

WHILE COMPLYING WITH AD 2000-05-29 PARA (A) DURING THE CURRENT C-CHECK, WE FOUND MULTIPLE CRACKS ON THE FWD PRESSURE BULKHEAD AT STA 178.  DAMAGE WAS CUTOUT AND REPAIRED IAW SRM 53-10-10 FIG 1.  (K)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.