SDR 29GA201708240002

Service difficulty report · Landing Gear · Saab 340B

Difficulty date: August 23, 2017
Submitted: August 24, 2017
Operation: Air carrier
Aircraft: N346AG
Make and model: Saab 340B
Aircraft serial: 446
Aircraft time: 35,617 hours, 40,138 cycles
Engine: Ge CT79B
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Landing Gear
Condition: Malfunctioned
Stage of operation: CL
How discovered: O
Nature of condition: N
Precautionary procedure: O

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

What was found

WHEN RETRACTING LANDING GEAR AFTER TAKEOFF THERE WAS A LOUD KNOCKING SOUND IN THE NOSE GEAR WELL, FOLLOWED BY A HIGH PITCHED WHINE FROM THE HYDRAULIC PUMP. RETRACTION TOOK 30 SECONDS LONGER THAN NORMAL. CFW5455 PREFORMED LANDING GEAR SWING IAW AMM 32-30-00-05. OPS CHECKED GOOD, NO PROBLEMS FOUND.

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