# SDR AALA202109308409

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 26, 2021
- Submitted: September 30, 2021
- Operation: Air carrier
- Aircraft: [N816NN](https://openairdocs.org/aircraft/N816NN), registered now
- Make and model: Boeing 737*
- Aircraft serial: 31081
- Aircraft time: 36,020 hours, 14,538 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- Part number: 143A5410174
- Condition: Cracked
- Location: Zone 100 - Fuse
- 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/AALA202109308409

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CRACK FOUND IN TOP ANGLE ON INTERCOSTAL LOCATED AT 380 - 400, LEFT BUTT LINE 12. REMOVED AND REPLACED ANGLE PER AARD 51-00-05-1.

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