Service difficulty report · Seal Depressor · Cessna 525B

Difficulty date
September 26, 2025
Submitted
October 24, 2025
Operation
Air carrier
Aircraft
N780JS
Make and model
Cessna 525B
Aircraft serial
525B0043
Part
Seal Depressor
Condition
Out Of Tolerance
Location
Zone 200
Stage of operation
CL
How discovered
V
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

LOUD WHISTLE COMING FROM THE MAIN CABIN DOOR BEGAN AT 33,500FT. LEVELED OFF AT 34000. NO ANNUNCIATOR LIGHTS ILLUMINATED, PRESSURIZATION WAS HOLDING. RE-CONTOURED MED MATING SURFACE TO CREATE SOLID SEAL.

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