# SDR USAASB00325

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 2000
- Submitted: March 20, 2001
- Operation: Air carrier
- Aircraft: [N376US](https://openairdocs.org/aircraft/N376US), registered now
- Make and model: Boeing 737-3B7
- Registry model: [Boeing 737-3B7](https://openairdocs.org/model/boeing-737-3b7) (OpenAirDocs)
- Aircraft serial: 22955
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 20405011
- Condition: Overserviced
- Location: Ac Bay
- Stage of operation: CL
- How discovered: O
- Nature of condition: B, W
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAASB00325

## Discrepancy

PIT - FLT 9550 - AIRCRAFT WAS ON A TEST HOP AFTER A MAINTENANCE CHECK, WHEN JUST AFTER TAKEOFF, A SMALL AMOUNT OF SMOKE WAS NOTED IN THE COCKPIT.  FLIGHT RETURNED TO FIELD AT PIT WITHIN MINUTES OF TAKEOFF.  FLIGHT LANDED WITHOUT FURTHER INCIDENT.  NO EMERGENCY WAS DECLARED.  MAINTENANCE FOUND THE ACM OVERSERVICED.  RESERVICED ACM. OPS CHECK GOOD.  NO SMOKE OR ODOR NOTED.  (M)

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