Service difficulty report · Adapter Ring · Doug DC1040F

Difficulty date
July 11, 2005
Submitted
August 1, 2005
Operation
Air carrier
Aircraft
N140WE
Make and model
Doug DC1040F
Aircraft serial
46920
Engine
Pwa JT9D*
Part
Adapter Ring
Part number
ATL7105
Condition
Damaged
Location
Nr 2 Bellmouth
Part time
59,475 hours
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 PREFLIGHT CHECK, DAMAGE WAS FOUND TO NR 2 ENGINE INTAKE AND FAN BLADES. ENGINE INTAKE HAS DAMAGE TO UPPER AND LOWER BELL MOUTH ADAPTOR RINGS, INTAKE INLET LIP HAD SKIN BLOWN OUT, NUMEROUS CRACKS FOUND ALONG CIRCUMFERENCE AT ATTACH FASTENERS. INLET SEAL TORN AT FWD END OF TOP ADAPTER RING, L/E CHANNEL OF UPPER SEGMENT OF ADAPTER RING HAS SEVERAL CRACKS AND 1 LARGE HOLE ON LT SIDE, ACOUSTIC MATERIAL DAMAGED FWD OF FAN BLADES. BORESCOPE INSPECTION OF NR 2 ENGINE FOUND FOD DAMAGE TO LPC AND HPC BEYOND MM LIMITS REQUIRING ENGINE REMOVAL. REPLACED NR 2 ENGINE. REPLACING PIECES OF INTAKE L/E, BELL MOUTH ADAPTOR RINGS AND ACOUSTIC MATERIAL. INSTRUCTED FLIGHT CREWS ON PROPER THROTTLE MANAGEMENT. (K)

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