Landing procedure in a night operation. Runway lighting HIRL partially OTS during landing.

Attributes
ACN	300569
Time
Date	199503
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lmt
State Reference	OR
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 135
Flight Phase	descent : approach landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 250 flight time total : 8500
ASRS Report	300569
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Airport
Air Traffic Incident	Pilot Deviation

Narrative:

ILS approach at night. East side of runway lights were inoperative but approach lights were on and we were familiar with the runway. Visibility was 1-3 clear mi and the runway surface was in sight. Between the runway and approach lights we accurately determined runway boundary and the centerline, which we picked up visually. Entire operation was safe and never in doubt. We landed without anomalies. I had thought that all you need are sufficient runway lights to determine the runway boundary. I since found the exact wording of the far to be, simply, that there should be runway lights for part 135 lndgs at night (runway boundary lights). This is not explicit enough to determine if this far prohibits landing when 1/2 the runway lights are not working.

Original NASA ASRS Text

Title: LNDG PROC IN A NIGHT OP. RWY LIGHTING HIRL PARTIALLY OTS DURING LNDG.

Narrative: ILS APCH AT NIGHT. E SIDE OF RWY LIGHTS WERE INOP BUT APCH LIGHTS WERE ON AND WE WERE FAMILIAR WITH THE RWY. VISIBILITY WAS 1-3 CLR MI AND THE RWY SURFACE WAS IN SIGHT. BTWN THE RWY AND APCH LIGHTS WE ACCURATELY DETERMINED RWY BOUNDARY AND THE CTRLINE, WHICH WE PICKED UP VISUALLY. ENTIRE OP WAS SAFE AND NEVER IN DOUBT. WE LANDED WITHOUT ANOMALIES. I HAD THOUGHT THAT ALL YOU NEED ARE SUFFICIENT RWY LIGHTS TO DETERMINE THE RWY BOUNDARY. I SINCE FOUND THE EXACT WORDING OF THE FAR TO BE, SIMPLY, THAT THERE SHOULD BE RWY LIGHTS FOR PART 135 LNDGS AT NIGHT (RWY BOUNDARY LIGHTS). THIS IS NOT EXPLICIT ENOUGH TO DETERMINE IF THIS FAR PROHIBITS LNDG WHEN 1/2 THE RWY LIGHTS ARE NOT WORKING.

Data retrieved from NASA's ASRS site as of July 2007 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.