SDR PCAA0003024

Service difficulty report · Jackscrew · Dhav DHC8102

Difficulty date: March 28, 2000
Submitted: March 30, 2000
Operation: Air carrier
Aircraft: N822EX
Make and model: Dhav DHC8102
Aircraft serial: 187
Aircraft time: 23,602 hours, 26,748 cycles
System (JASC): 2730 · Elevator Control System
Part: Jackscrew
Condition: Frozen
Location: Elevator
Stage of operation: CR
How discovered: O
Nature of condition: F
Precautionary procedure: O

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

What was found

FLIGHT 3663 EN ROUTE FROM CRW TO PIT - DURING CRUISE FLIGHT THE MANUAL ELEVATOR TRIM JAMMED. THE STANDBY TRIM OPERATED NORMALLY. CREW DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED ELEVATOR TRIM SYSTEM CABLES AND CHAINS. LUBRICATED THE ELEVATOR JACKSCREWS IAW DEHAVILLAND PROCEDURES. TRIM SYSTEM OPERATED NORMALLY. SUSPECT WATER IN JACKSCREW FREEZING AT ALTITUDE. FOLLOW UP MAINTENANCE WAS PERFORMED WITH NO DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.