Service difficulty report · Nose Cowl · Boeing 74744AF

Difficulty date
May 26, 2026
Submitted
June 3, 2026
Operation
Air carrier
Aircraft
N577UP
Make and model
Boeing 74744AF
Aircraft serial
35666
Aircraft time
63,511 hours, 9,924 cycles
Part
Nose Cowl
Part number
2242101573HF
Part serial
3262001
Condition
Dented
Location
Zone 400
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

DENT - SKIN, NO. 1 ENG NOSE COWL INNER BARREL 11:00 POS. CUT OUT THE DAMAGE AND CLEAN, MEASURE THE CUTOUT ( DIA : 0.7", 22" FROM FWD EDGE AND AT 11 O'CLOCK ON THE INNER BARREL OF NR 1 ENF INLET COWL) FILL THE CUTOUT WITH ADHESIVE CURED AT 200°F FOR 1 HOUR IAW SRM 54-15-01-2R-3 REV. 106 2. CONDITION CHECK IS SATISFACTORY. THE CUMULATIVE REPAIR BLOCKAGE OF ACOUSTIC PANEL IS 0.38 SQUARE INCHES FOR THIS NRC. THE CUMULATIVE REPAIR BLOCKAGE OF ACOUSTIC PANEL IS 0.38 SQUARE INCHES FOR NO.1 ENGINE INLET COWL CONFIRM THAT THE ENGINE / NACELLE IS ACOUSTICALLY COMPLIANT IAW SRM 54-01-01-2R-1 REV. 106.

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