SDR SWAA990277

Service difficulty report · Controller · Boeing 7373H4

Difficulty date: February 16, 1999
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N343SW
Make and model: Boeing 7373H4
Aircraft serial: 24151
System (JASC): 2131 · Cabin Pressure Controller
Part: Controller
Part number: 7638101
Condition: Malfunctioned
Location: Cockpit
Stage of operation: CR
Nature of condition: J
Precautionary procedure: O

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

What was found

WHILE CRUISING AT FL 330 CABIN ALT ROSE ABOVE 10,000 FT, HORN SOUNDED. DESCENDED TO FL 200 AND WENT TO PACKS ON HIGH, CABIN CAME BACK UNDER CONTROL. REMOVED AND REPLACED PRESSURIZATION CONTROLLER AND CONTROL PANEL OPS CHECKS GOOD PER M/M.

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