Service difficulty report · Switch · Airbus A300B4622R

Difficulty date
May 14, 2015
Submitted
May 18, 2015
Operation
Air carrier
Aircraft
N743FD
Make and model
Airbus A300B4622R
Aircraft serial
630
Aircraft time
572 hours, 20,135 cycles
Part
Switch
Part number
224TS05Y
Part serial
557
Condition
Faulty
Location
Landing Gear
Stage of operation
AP
How discovered
O
Nature of condition
N
Precautionary procedure
L

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

What was found

GEAR DID NOT EXTEND WHEN SELECTED DOWN. SYS 2 INDICATIONS WERE RED UNLOCK ONLY ON INDICATOR PANEL. GEAR HANDLE BROUGHT BACK UP TO NEUTRAL POSITION, SYS 1 SELECTED & HANDLE PLACED BACK DOWN WITH SAME UNLOCK ONLY RESULT. APPROX 10 SECONDS LATER HANDLE STILL DOWN IN SYS 1, THE GEAR EXTENDED NORMALLY. COMPLIED WITH MOCC REQUEST, TO INSPECT CP AT LG SELECTOR VLV 3GA, MLG WW, ALL CP PINS & CP CONNECTION AT VLV, APPEAR NORMAL, CP AT 3 GA, REMOVES & LOCKS NORMAL. REPLACED TO ORIGINAL CONFIGURATION IAW MM 32-30-00. PERFORMED LG PROX BITE TESTS REQUIRED, NO FAULTS NOTED, MOCC NOTIFIED. IAW MM 32-00-00-05 PARTS IDENTIFIED ARE FOR TROUBLESHOOTING IAW TSM 32-30-00 -GEAR DOORS FAIL TO OPEN & ALL GEARS FAIL TO EXTEND. .2 GA LG LEVER COCKPIT, 3 GA LG SELECTOR VLV WW. REPLACED 2GA LANDING GEAR CONTROL NORMAL MICROSWITCH UNIT PER 32-31-11-04C/W NORMAL GEAR SWING PER MM 32-31-00-05-09,3, OPS CK NORMAL WITH SYS 1 & 2. PERFORMED OP CHECK OF 2GA LANDING GEAR CONTROL MICROSWITCH UNIT PER 32-31-11-04 OP CHECKS NORMAL

More about the Airbus A300 B4-622R