SDR USAASB96029

Service difficulty report · Controller · Boeing 7374B7

Difficulty date: February 12, 1996
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N780AU
Make and model: Boeing 7374B7
Aircraft serial: 24997
System (JASC): 2131 · Cabin Pressure Controller
Part: Controller
Part number: 7638102
Condition: Failed
Location: Cabin
Stage of operation: CL
Nature of condition: J
Precautionary procedure: A

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

What was found

FLT NR 1201 - BWI - ON CLIMB-OUT FROM EWR AT 34.5 CABIN ALT. WARNING HORN CABIN AT 13,000 UNABLE TO CONTROL PRESSURE DESCENT TO 10,000. MAINTENANCE REPLACED AUTO CONTROLLER, OPS CHECK NORMAL. PERFORMED OPERATIONAL TEST OF PRESS CONTROL SYSTEM IAW MM CH 21-31-00 PAGE 201. (M)

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