Service difficulty report · Seal · Cessna 550

Difficulty date
June 18, 2001
Submitted
June 21, 2001
Operation
General aviation
Aircraft
N586RE
Make and model
Cessna 550
Aircraft serial
5500199
Aircraft time
8,100 hours, 6,296 cycles
Engine
Pwa JT15D4
Engine time
8,343 hours, 6,392 cycles
Part
Seal
Part number
3015537
Part serial
NONE
Condition
Leaking
Location
Nr 2 Engine
Component
Accessory Gearb · Pwa
Component part number
3017246D
Stage of operation
IN
How discovered
C
Nature of condition
K
Precautionary procedure
K

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

What was found

FOUND HYDRAULIC PUMP DRIVE PAD ON ENGINE NR 2 LEAKING. NEWLY INSTALLED SEAL I.D. FOUND APPROX. .015 INCH TOO LARGE FOR SHAFT IT IS SUPPOSED TO SEAL. SHAFT DIAMETER: 0.865 INCH, SEAL ID: 0.880 INCH. THIS PROBLEM OCCURRED WITH AT LEAST SIX SEALS BEFORE ONE WAS FOUND WITH THE CORRECT "TIGHT" FIT ON THE DRIVE SHAFT.

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