After noting that neither light bulb in the right main gear green light had illuminated; fatigue and...

Attributes
ACN	1192041
Time
Date	201407
Local Time Of Day	1801-2400
Place
Locale Reference	YSSY.Airport
State Reference	FO
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	Landing
Flight Plan	IFR
Component
Aircraft Component	Landing Gear Indicating System
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Relief Pilot First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Flight Deck / Cabin / Aircraft Event Other / Unknown

Narrative:

On short final upon selecting landing gear handle down the rh main gear down light was not illuminated. Conducted a lights test and verified light bulbs were inoperative. Elected a go-around to further troubleshoot and run the associated checklist. Aircraft was maintained in positive control and flight profile was done well. Informed ATC of problem and requested vectors for extended downwind for time management. Taking into consideration previous experience on this aircraft of the same light bulbs being burnt out during preflight checks; the crew agreed the issue was a false indication. However; we also inappropriately concluded the gear unsafe checklist was not appropriate and failed to blow the gear down in accordance with correct procedure. We were tired; more concerned with flying the plane and convinced of a false indication. We were ultimately proven right with an uneventful and nice landing.

Original NASA ASRS Text

Title: After noting that neither light bulb in the Right Main Gear green light had illuminated; fatigue and the conviction that the lack of additional expected alerts caused the flight crew of a B767-300ER to land uneventfully without completing the Gear Disagree non-normal checklist.

Narrative: On short Final upon selecting landing gear handle down the RH Main Gear Down Light was not illuminated. Conducted a lights TEST and verified light bulbs were inoperative. Elected a go-around to further troubleshoot and run the associated checklist. Aircraft was maintained in positive control and flight profile was done well. Informed ATC of problem and requested vectors for extended downwind for time management. Taking into consideration previous experience on this aircraft of the same light bulbs being burnt out during preflight checks; the crew agreed the issue was a false indication. However; we also inappropriately concluded the Gear Unsafe Checklist was not appropriate and failed to blow the gear down in accordance with correct procedure. We were tired; more concerned with flying the plane and convinced of a false indication. We were ultimately proven right with an uneventful and nice landing.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

After noting that neither light bulb in the right main gear green light had illuminated; fatigue and the conviction that the lack of additional expected alerts caused the flight crew of a B767-300ER to land uneventfully without completing the gear disagree non-normal checklist.