Service difficulty report · Blades · Doug DC987

Difficulty date
July 7, 2006
Submitted
July 11, 2006
Operation
Air carrier
Aircraft
N216AM
Make and model
Doug DC987
Aircraft serial
49586
Aircraft time
39,498 hours, 31,311 cycles
Engine
Pwa JT8D219
Engine time
41,272 hours, 29,057 cycles
Part
Blades
Part number
JT8D219
Part serial
725604
Condition
Damaged
Location
Lt Compressor
Part time
41,272 hours, 29,057 cycles
Stage of operation
IN
How discovered
O
Nature of condition
C
Precautionary procedure
K

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

What was found

DURING TRANSIT CHECK, 2 BLADES OF LT ENGINE WERE DETECTED DAMAGED BY FOD. DAMAGES WERE 1.8750 INCH FROM BLADE ROOT TO MID SPAN, ONE WITH 0.040 INCH DEPTH AND .5625 INCH LONG, AND THE OTHER ONE WITH 0.030 INCH DEPTH AND .5625 INCH LONG. AIRCRAFT WAS SENT TO THE HANGAR AND DURING OVERNIGHT CHECK A BOROSCOPE INSPECTION WAS PERFORMED TO COMPRESSOR 6TH AND 7TH STAGES IAW MM 72-00-00, PARAGRAPH 15, NO DAMAGES WERE DETECTED. BLADES WERE REPAIRED IAW MM 72-33-21 PAGE 801, BEING WITHIN LIMITS.

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