Service difficulty report · Door Seal · Boeing 7572Y0

Difficulty date
December 9, 2014
Submitted
December 12, 2014
Operation
Air carrier
Aircraft
N754CX
Make and model
Boeing 7572Y0
Aircraft serial
26154
Aircraft time
55,807 hours, 23,449 cycles
Part
Door Seal
Condition
Out Of Position
Location
L4 Door
Stage of operation
CR
How discovered
O
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

AT 390 CABIN ALTITUDE HOVERED BETWEEN 9800-10000FT. LT BLEED AIR PRESS WAS 41 & RT BLEED AIR PRESS WAS 51. DIFFERENTIAL WAS AROUND 7.2. OUTFLOW VLV INDICATED FULLY CLOSED. DESCENDED TO 250, DIFFERENTIAL STAYED AT 7.2. CABIN ALTITUDE WAS STEADY AT 6000. ACFT RETURNED TO DEPARTURE STATION. UPON TROUBLESHOOTING FOUND L4 DOOR PRESS SEAL AT LOWER SWEEP OUT OF RETAINER. INSTALLED L4 DOOR SEAL IAW AMM 52-09-01. OPERATIONS & LEAK CHECK SATISFACTORY IAW AMM 05-51-24.

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