SDR PCAA9500200

Service difficulty report · Retract Mech · Dhav DHC8102

Difficulty date: February 26, 1995
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N820EX
Make and model: Dhav DHC8102
Aircraft serial: 019
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Retract Mech
Condition: Malfunctioned
Location: Landing Gear
Part time: 15,260 hours
Stage of operation: AP
Nature of condition: J
Precautionary procedure: O

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

What was found

WHILE SELECTING GEAR DOWN, NR 2 MAN HYDRAULIC PRESSURE WENT TO ZERO, NO GEAR EXTENDED AT THAT POINT. LOUD GRINDING NOISE WAS HEARD AFTER GEAR SELECTED DOWN, PERFORMED ALTERNATE EXTENSION. JACKED ACFT, CHECKED ENG DRIVE HYD PUMP FOR AIR LEAKS, BLED SYSTEM, AND CYCLED GEAR SEVERAL TIMES. REMOVED AND REPLACED PSEU FOR TROUBLESHOOTING, OPS CHECKS GOOD. ACFT RETURNED TO SERVICE. (W)