SDR 96ZZZX4016

Service difficulty report · Blade

Difficulty date
June 6, 1996
Submitted
March 26, 2000
Operation
General aviation
Engine
Pwa JT8D17
Part
Blade
Part number
798209
Condition
Cracked
Location
Hpc Stage 9
Stage of operation
IN
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

AFTER DISASSEMBLY OF THE 9TH STAGE COMPRESSOR DISK, FOUND 3 BLADES WITH CRACKS IN THE ROOTS. THESE CRACKS ARE ON THE CONCAVE SIDE OF THE BLADE, BEGINS AT THE TRAILING EDE OF THE ROOTS, AND RUNS ALONG THE PRESSURE SIDE. ONE OF THESE BLADES IS ALMOST TOO LOOSE, NEARLY A THIRD OF THE ROOT.