# SDR CALA2026102120505

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 2026
- Submitted: October 21, 2026
- Operation: Air carrier
- Aircraft: [N2331U](https://openairdocs.org/aircraft/N2331U), registered now
- Make and model: Boeing 777-300ER
- Registry model: [Boeing 777-300ER](https://openairdocs.org/model/boeing-777-300er) (OpenAirDocs)
- Aircraft serial: 62642
- Aircraft time: 41,694 hours, 4,524 cycles
- System (JASC): [4910 · APU Cowling/Containment](https://openairdocs.org/jasc/4910)
- Part: Seal
- Part number: 353W41131
- Condition: Damaged
- Location: Apu Inlet
- 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/CALA2026102120505

## Discrepancy

APU MOUNT CHECK,  INLET DUCT PLENUM SEAL IS DISTORTED ON LT SIDE.  REMOVED APU AIR INLET PLENUM SEAL IAW AMM 49-15-04 & REPLACED IAW AMM 49-15-04-400-801.

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