Service difficulty report · Sealant · Boeing 747422

Difficulty date
October 1, 2013
Submitted
October 3, 2013
Operation
Air carrier
Aircraft
N179UA
Make and model
Boeing 747422
Aircraft serial
25158
Aircraft time
92,891 hours, 11,126 cycles
Engine
Pwa PW4056
Part
Sealant
Condition
Misinstalled
Location
L5 Door
Stage of operation
NR
How discovered
O
Nature of condition
W
Precautionary procedure
O

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

What was found

FOUND MULTIPLE CORNERS OF DOOR 5L WITH IMPROPER SEALING TECHNIQUE ACCOMPLISHED. CLEANED OUT ALL SEALANT THAT DOES NOT STICK TO DOOR STRUCTURE. REAPPLIED NEW RTV102 TO ALL AREAS EFFECTED BY IMPROPER CLEANING OF DOOR IAW REF MM 52-09-01-4 01 ITEM D8. NEW SEALANT NEEDS 24HR TO CURE STARTING AT 1800 HRS, ON 30 SEPT. PRESSURIZED CABIN TO 4.0 PSI IAW MM 5-51-08-201. NO AIR LEAKS OR SQUEALING SOUNDS NOTED.