SDR 98UAL900428

Service difficulty report · Seal · Boeing 727222

Difficulty date: August 19, 1998
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N7443U
Make and model: Boeing 727222
Aircraft serial: 21897
Engine: Pwa JT8D15
System (JASC): 2133 · Pressure Regulator/Outflow Valve
Part: Seal
Part number: 10614501
Condition: Missing
Location: Outflow Vlv
Stage of operation: CR
Nature of condition: O
Precautionary procedure: O

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

What was found

UNABLE TO MAINTAIN CABIN PRESSURE IN EITHER AUTO, STANDBY, OR MANUAL. DESCENDED TO 10,000 FEET AND PROCEEDED TO CLE. *S/D* MAINTENANCE FOUND OUTFLOW VALVE SEAL MISSING. ALSO, FOUND THE SEAL ON DOOR 1 RIGHT OUT OF TRACK. REPOSITIONED SEAL ON DOOR TRACK AND INSTALLED SEAL ON OUTFLOW VALVE.