# SDR ABXA9701296

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N901AX
- Make and model: Doug DC-9-32
- Registry model: [Doug DC-9-32](https://openairdocs.org/model/mcdonnell-douglas-dc-9-32) (OpenAirDocs)
- Aircraft serial: 47381
- System (JASC): [4980 · APU Exhaust System](https://openairdocs.org/jasc/4980)
- Part: Exhaust Duct
- Part number: 6951401
- Condition: Cracked
- Location: Apu
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA9701296

## Discrepancy

DURING C-CHECK, FOUND A CRACK IN THE APU CASE NEXT TO THE THERMOSTAT BOSS, VISIBLE LOOKING FORWARD THROGH THE EXHAUST DUCT BELOW THE FLANGE.  *S/D*  REPLACED THE EXHAUST DUCT FLANGE IAW GARRET OHM 49-22-05.

---
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.