# SDR AALA201806229009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 19, 2018
- Submitted: June 26, 2018
- Operation: Air carrier
- Aircraft: [N738US](https://openairdocs.org/aircraft/N738US), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1254
- Aircraft time: 48,282 hours, 29,032 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Part number: 38007081WGEN
- Part serial: P3526
- Condition: Leaking
- Location: Zone 200
- Part time: 25,693 hours, 17,302 cycles
- Stage of operation: IN
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201806229009

## Discrepancy

AIRCRAFT WAS GROUNDED. FLIGHT ATTENDANTS REPORTED ACRID AND STRONG PREVALENT ODOR IN CABIN WITH NR 1 ENGINE RUNNING/PACKS ON FOLLOWING HOOK UP TO START CART. AIRCRAFT NOT OK FOR FLIGHT. TROUBLESHOOTING PER TSM 49-00-00-810-846A AND ACCOMPLISHED J/C 26L00021001 DETERMINED APU WAS CAUSE OF CABIN ODOR. ALSO ACCOMPLISHED J/C 26L00021002 DUE TO APU OIL LEAKING.  RAN BOTH ENGINES/PACKS WITHOUT APU LOAD CONTROL VALVE OPEN-COULD NOT DUPLICATE. OK FOR SERVICE. REPLACED APU PER J/C 26L31049003. LEAK AND OPERATIONS CHECK GOOD.

---
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.