Service difficulty report · Nose Cowl · Boeing 74747UF

Difficulty date
October 24, 2010
Submitted
October 25, 2010
Operation
Air carrier
Aircraft
N408MC
Make and model
Boeing 74747UF
Aircraft serial
29261
Aircraft time
51,295 hours, 7,986 cycles
Engine
Ge CF680
Part
Nose Cowl
Part number
2242101543
Part serial
0467
Condition
Dented
Location
Nr 3 Engine
Stage of operation
IN
How discovered
W
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

MX FOUND NR 3 ENGINE INLET NOSE COWL L/E DENTED AT APPROX 2 O' CLOCK POSITION MEASURING 12.0 INCHES IN LENGTH X 5.0 INCHES WIDTH AND 0.5 INCH DEPTH. AFTER DETAIL VISUAL INSP (10X MAGNIFYING GLASS) IT WAS VERIFIED THAT NO SHARP CREASES AND/OR CRACK CONDITION EXISTS. DISPOSITION WAS MADE TO PERFORM TIME LIMITED REPAIR AS DESCRIBED IN PART 1 WORK INSTRUCTIONS, INITIATE REPEAT INSPECTIONS PRIOR TO EACH FLIGHT AND SCHEDULE PERMANENT REPAIR PRIOR TO THE ACCUMULATION OF 25 FLIGHT CYCLES AFTER PART 1 BY R & R THE SUBJECT DAMAGED NOSE COWL IAW THE AMM 71-11-01 OR PERFORMING PERMANENT REPAIR IAW SRM 54-11-01, FIGURE 201, REPAIR 1 OR 2. PART 1 OF THIS EO ACCOMPLISHED TIME LIMITED REPAIR VIA FAA 8110-3 FORM ISSUED 24OCT10 SINCE THE DAMAGE EXCEEDS THE ALLOWABLE DAMAGE LIMITS IAW SRM 54-11-01 FIG 101, ALLOWABLE DAMAGE.

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