N98876

Part: STRUT — DISCHARGED (NLG) · airframe 42,314 hrs · 21,309 cycles

WHEN GEAR WAS RETRACTED AFTER TAKEOFF FROM IAH, THE HANDLE CAME UP, BUT THREE RED LIGHTS AND 1 YELLOW WERE ILLUMINATED ACCOMPANIED BY GEAR NOISE. THE HANDLE WAS LOWERED AND THREE GREEN LIGHTS WERE INDICATED WITH GEAR DOOR LIGHT OUT. THE GEAR WAS RECYCLED WITH SAME RESULTS. THE AIRCRAFT WAS RETURNED TO IAH. WHEN SPOILER HANDLE WAS TRIED ON LANDING, THE HANDLE WOULD NOT MOVE. RECYCLED C/B''S L-33 AND K-33, BUT SPOILER HANDLE STILL WOULD NOT MOVE. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE LANDING GEAR WAS EXTENDED AND RETRACTED 10 TIMES IAW MM 32-30-00 AND OPERATION AND INDICATIONS CHECKED GOOD. SPOILER OPERATION CHECKED GOOD IAW MM 27-60-00. A FULL NOSE STRUT SERVICING WAS PERFORMED IAW MM 32-21-02.

Part: INDICATION — MALFUNCTIONED (LANDING GEAR)

THREE RED GEAR UNSAFE LIGHTS REMAINED ILLUMINATED AFTER GEAR RETRACTION DEPARTING ROC. CYCLING THE GEAR WAS NO HELP. THE AIRCRAFT WAS RETURNED TO ROC WHERE IT LANDED WITHOUT INCIDENT. THE GEAR WAS SWUNG SEVERAL TIMES AND THE PROBLEM COULD NOT BE DUPLICATED. AN ADJUSTMENT/TEST WAS PERFORMED ON THE GEAR INDICATION IAW MM 32-60-00 AND ALL CHECKED GOOD.

Part: LAMPS — FAILED (NLG)

THE NOSE GEAR GREEN LIGHT DID NOT ILLUMINATE WHEN GEAR WAS EXTENDED ON APPROAC. ALL OTHER INDICATIONS APPEARED NORMAL AND GEAR WAS MECHANICALLY CONFIRMED DOWN AND LOCKED. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED ALL FOUR NOSE GEAR INDICATION LAMPS. A GEAR RETRACTION WAS PERFORMED IAW MM 32-60-00, PAGE 201 WITH OPERATION AND INDICATIONS CHECKING GOOD.

Part: BATT CHARGER — INOPERATIVE (CABIN)

INSPECTION FOUND AFT SECTION OF SEAT TRACK EMERGENCY LIGHTS INOPERATIVE. THE AFT SEAT TRACK EMERGENCY LIGHT BATTERY CHARGER WAS REMOVED AND REPLACED AND OPERATION OF EMERGENCY LIGHTS WAS RESTORED.

Part: ACTUATOR — INOPERATIVE (NLG)

THE AIRCRAFT HAD A BRIEF HISTORY OF THE NLG RED UNSAFE LIGHT REMAINING ILLUMINATED AFTER GEAR RETRACTION. CYCLING THE GEAR CORRECTED THE PROBLEM. MAINTENANCE FOUND THE NLG ACTUATOR AT FAULT. THE NLG ACTUATOR WAS REMOVED AND REPLACED IAW MM 32-32-06. LEAK AND OPERATIONAL CHECKS WERE GOOD.

Part: CLAMP — BROKEN (TAIL CONE)

DURING 1/4 D-CHECK INSP, FOUND TAIL CONE RELEASE CONDUIT CABLE HAS CLAMP AT LOWER END BROKEN. REMOVED AND REPLACED BROKEN CLAMP WITH NEW CLAMP (P/N AN74206).

Part: ATTACH LINK — BROKEN (LT MLG ACTUATOR)

THE LEFT MLG WOULD NOT INDICATE UP AND LOCKED AND THE RED LT MLG LIGHT REMAINED ON WITH AMBER GEAR DOOR LIGHT ILLUMINATED AFTER TAKEOFF. WHEN GEAR WAS EXTENDED FOR LANDING, CREW RECEIVED THREE GREEN AND DOOR CLOSED LIGHTS WERE NORMAL. MAINTENANCE FOUND THE LT MLG ACTUATOR LOWER ATTACH LINK BROKEN. THE LOWER ATTACH LINK WAS REPLACED IAW MM 32-32-02 AND OVERHAUL MANUAL 32-17-00, PAGE 601. IN ADDITION, THE LT MLG ACTUATOR UPPER ATTACH LINK WAS REPLACED AS A PRECAUTIONARY MEASURE. OPERATIONAL CHECKS WERE GOOD.

Part: SKIN — TORN (CARGO DR CUTOUT)

INSPECTION FOUND ALL SKIN LAYERS TORN 1.5 INCH DEEP AT MID CARGO DOOR FRAME LOWER AFT CORNER. A DOUBLER AND TRIPLER WERE INSTALLED IAW ECRA 5330-02447.

Part: ATTACH ANGLE — CRACKED (DORSAL FIN)

INSPECTION FOUND RT DORSAL FIN ATTACH ANGLE CRACKED. THE ANGLE WAS REPAIRED IAW EA 5340-01012.

Part: SENSOR — OUT OF ADJUST (NLG)

IAH - FLT 0458 - THE NLG RED UNSAFE LIGHT REMAINED ILLUMINATED AFTER GEAR RETRACTION. THE GEAR WAS CYCLED AND THE LIGHT EXTINGUISHED. THE POSITION SENSOR ON THE NOSE GEAR DRAG BRACE WAS ADJUSTED PER MM 32-60-00, PAGE 218. THE AIRCRAFT HAS FLOWN OVER 15 FLIGHTS WITHOUT A REPEAT OF THE PROBLEM SINCE THIS CORRECTIVE ACTION WAS IMPLEMENTED. (X)