Service difficulty report · Actuator · Bombdr DHC8400

Difficulty date
June 10, 2019
Submitted
August 17, 2020
Operation
General aviation
Make and model
Bombdr DHC8400
Part
Actuator
Part number
47830DASH3
Condition
Leaking
Location
Nlg Door
Stage of operation
CL
How discovered
O
Nature of condition
K, J
Precautionary procedure
A

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

What was found

(CAN) 10-JUN-2019 NLG DOOR FAILED TO CLOSE AFTER TAKE OFF. THE NLG DOOR FINALLY CLOSED AT FL120. FURTHER ON ARRIVAL PSEU BITE WAS CARRIED OUT WHICH SHOWS NLG DOOR CLOSE SENSOR OK. NLG DOOR OPERATION IS SATISFACTORY ON GROUND. 02-JUN-2019 IN FINAL APPROACH ONCE LANDING GEAR DOWN IS SELECTED. THEN NOSE DOOR ADVISORY LIGHT REMAIN ILLUMINATED WITHLANDING GEAR NOSE GREEN FLICKERING/INTERMITTENT INDICATION. HENCE PROACTIVELY TO BE SURE GEAR DOWN AND LOCKED, ALTERNATE EXTENSION CARRIED OUT AND LANDED SAFELY AND AIRCRAFT TOWED TO BAY. MAINT - EXTERNAL VISUAL INSPECTION OF THE NOSE LANDING GEAR DOOR CARRIED OUT, FOUND NO ABNORMALITIES. DEFECT CARRIED FORWARD IN ACCORDANCE WITH MEL 32-30-1, `LANDING GEAR RETRACTION SYSTEM` DECLARED INOPERATIVE. CAT `A`. VALID FOR ONE(1) FLIGHT ONLY. PSEU BITE CARRIED OUT IAW AMM#TASK 32-61-00-742-801, FOUND F/C NGLK1/NGLK2 VALUE OUT OF LIMIT (8.091MLLI OHM), SAME RIGGING CARRIED OUT IAW AMM#TASK 32-61-00 INDUCTANCE VALUE WITH IN LIMIT (8.312MH). TASK 32-31-00-710- 801 - OPERATIONAL TEST OF THE LANDING GEAR PRIMARY EXTENSION AND RETRACTION SYSTEM TO BE C/O. PSEU BITE CARRIED OUT IAW AMM#TASK 32-61-00-742-801, FOUND F/C NGLK1/NGLK2 VALUE OUT OF LIMIT (8.091MLLI OHM), SAME RIGGING CARRIED OUT IAW AMM#TASK 32-61-00 INDUCTANCE VALUE WITH IN LIMIT (8.312MH). TASK 32-31-00-710- 801 - OPERATIONAL TEST OF THE LANDING GEAR PRIMARY EXTENSION AND RETRACTION SYSTEM TO BE C/O. PSEU BITE CARRIED OUT IAW AMM#TASK 32-61-00-742-801, FOUND F/C NGLK1/NGLK2 VALUE OUT OF LIMIT (8.091MLLI OHM), SAME RIGGING CARRIED OUT IAW AMM#TASK 32-61-00 INDUCTANCE VALUE WITH IN LIMIT (8.312MH). TASK 32-31-00-710-801 - OPERATIONAL TEST OF THE LANDING GEAR PRIMARY EXTENSION AND RETRACTION SYSTEM TO BE C/O.PSEU BITE CARRIED OUT IAW AMM#TASK 32-61-00-742-801, FOUND F/C NGLK1/NGLK2 VALUE OUT OF LIMIT (8.091MLLI OHM), SAME RIGGING CARRIED OUT IAW AMM#TASK 32-61-00 INDUCTANCE VAL 11-JUN-2019 NLG SSV TO BE R&R (TC# 20190610003)