SDR SWAA010963

Service difficulty report · Controller · Boeing 7373H4

Difficulty date: March 29, 2001
Submitted: April 9, 2001
Operation: Air carrier
Aircraft: N339SW
Make and model: Boeing 7373H4
Aircraft serial: 24090
Aircraft time: 42,541 hours, 41,062 cycles
System (JASC): 2131 · Cabin Pressure Controller
Part: Controller
Part number: 7638102
Condition: Loose
Location: Cabin Pressure
Stage of operation: CL
How discovered: O
Nature of condition: O
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AIR TURNBACK, CABIN CLIMBED NORMAL TO 1000 FT THEN ABRUPTLY CLIMBED AND RETURNED TO NORMAL. AT 15,000 FT, CABIN DEPRESSURIZED, NO HELP IN STANDBY OR NORMAL MODE. FOUND CABIN PRESS CONTROLLER LOOSE IN RACK. SECURED CONTROLLER AND PRESSURIZED AIRCRAFT PER MM. OPS CHECK GOOD. PERFORMED PACK CONFIDENCE CHECK PER SWA SAM 728.

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