Service difficulty report · Skin · Boeing 7472D7B

Difficulty date
August 5, 2010
Submitted
August 5, 2010
Operation
Air carrier
Aircraft
N523MC
Make and model
Boeing 7472D7B
Aircraft serial
21782
Aircraft time
100,931 hours, 20,618 cycles
Engine
Ge CF650*
Part
Skin
Condition
Damaged
Location
Nr 2 Inlet Cowl
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

DURING WALKAROUND INSP, MX FOUND DAMAGE TO THE NR 2 ENG INLET COWL OUTER BARREL SKIN CRACK/DAMAGE (REF FIG 1). (DISPOSITION WAS MADE TO PERFORM A TIME LIMITED REPAIR AS DESCRIBED IN PART 1 WORK INSTRUCTIONS; SCHEDULE REPEAT INSPECTIONS AT EVERY 25 FC AND PERMANENT REPAIR PRIOR TO THE ACCUMULATION OF 1,000 FH (FLIGHT HOURS) AFTER PART 1. ACCOMPLISH REPAIR TO THE NR 2 ENGINE INLET COWL OUTER BARREL SKIN CRACK/DAMAGE (REF FIG 1) AS FOLLOWS: 1 . STOP DRILL CRACK IAW SRM 51-10-01. 2 . APPLY 3 LAYERS OF ALUMINUM FOIL TAPE (SPEED TAPE) COVERING THE DAMAGED AREA ENSURING THAT EVERY LAYER OVERLAPS A MINIMUM OF 1.5 INCHES IAW LAYER 3.

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