# SDR AALA202507026676

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 22, 2025
- Submitted: July 2, 2025
- Operation: Air carrier
- Aircraft: [N931NN](https://openairdocs.org/aircraft/N931NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33230
- Aircraft time: 35,662 hours, 15,430 cycles
- System (JASC): [5534 · Vertical Stabilizer Miscellaneous Structure](https://openairdocs.org/jasc/5534)
- Part: Shim
- Condition: Migrated
- Location: Zone 300
- 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/AALA202507026676

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: VERTICAL STABILIZER, RIGHT HAND REAR SPAR TERMINAL FITTING SHIM WASHER MIGRATING OUT FROM THE AFT SIDE OF THE OUTBOARD LUG. INSTALLED A NEW SHIM AND REINSTALLED THE BOLT AND NUT. PER AMM 55-30-00-400-801.

---
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.