SDR 05010

Service difficulty report · Duct · Boeing 7472B4B

Difficulty date
February 4, 2005
Submitted
February 7, 2005
Operation
Air carrier
Aircraft
N713CK
Make and model
Boeing 7472B4B
Aircraft serial
21099
Aircraft time
61,799 hours, 16,602 cycles
Engine
Pwa JT9D7J
Engine time
65,735 hours, 21,676 cycles
Part
Duct
Condition
Loose
Location
8th Stage
Stage of operation
CR
How discovered
O
Nature of condition
M, J
Precautionary procedure
O

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

What was found

AT FL 34.0, NR 2 ENG START VALVE LIGHT ILLUMINATED; FOLLOWED CHECKLIST. NR 2 THROTTLE SEIZED; RAN SEVERE DAMAGE CHECKLIST. ALL ENGINE INDICATIONS NORMAL. PERFORMED VISUAL INSPECTION TO ENGINE. FOUND 8TH STAGE BLEED DUCTS LOOSE AND START VALVE DAMAGED. INSTALLED SERVICEABLE 8TH STAGE DUCTS AND STARTER LEAK AND OP'S CHECK GOOD IAW B747 MM 71-00-00.

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