# SDR 96ZZZX3991

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 12, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N164AW](https://openairdocs.org/aircraft/N164AW), registered now
- Make and model: Boeing 737-33A
- Registry model: [Boeing 737-33A](https://openairdocs.org/model/boeing-737-33a) (OpenAirDocs)
- Aircraft serial: 23625
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Turbo Fan
- Part number: 8012403
- Condition: Failed
- Location: Air Distr System
- Part time: 10,833 hours
- Stage of operation: CL
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX3991

## Discrepancy

PHX/COS - FLT 2412 - AIR TURNBACK.   ON CLIMB-OUT, A/C SYSTEM STARTED BLOWING EXTREMELY HIGH PRESSURE AIR OUT OF ALL AIR DUCTS IN THE COCKPIT.  REMOVED AND REPLACED CONTROL CABIN MUFFLER.  REMOVED AND REPLACED TURBO FAN.  RAN BOTH PACKS WITH ENGINE BLEEDS.  FLIGHT DECK AIR DISTRIBUTION SYSTEM NORMAL.    PART TOTAL CYCLES, 8,039.  REFERENCE OPERATOR CONTROL NR AWXA960270.

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