SDR 2013FA0000637

Service difficulty report · Drive Shaft · Cessna 208B

Difficulty date: November 15, 2013
Submitted: November 15, 2013
Operation: General aviation
Aircraft: N839MA
Make and model: Cessna 208B
Aircraft serial: 208B2392
Aircraft time: 1,310 hours, 2,611 cycles
Engine: Pwa PT6A114A
Engine time: 1,310 hours, 2,611 cycles
Propeller: Mcauly 3GFR34C703
System (JASC): 2150 · Cabin Cooling System
Part: Drive Shaft
Part number: 26012672
Condition: Damaged
Location: A/C Compressor
Part time: 1,310 hours, 2,611 cycles
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 ROUTINE INSPECTION, FOUND AIR CONDITIONING DRIVE LEAKING OIL, REMOVED ACFT DRIVE AND FOUND GEAR SHAFT SPLINES, AND DRIVEN GEAR SHAFT SPLINES, COMPLETELY WORN BEYOND LIMITS, SPLINES ON BOTH DRIVE AND DRIVEN GEAR SHAFTS ALMOST GONE.

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