Flight crew of a BA31 landed on the wrong parallel runway by mistake.

Attributes
ACN	421970
Time
Date	199811
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : fat
State Reference	CA
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	Jetstream 31
Operating Under FAR Part	Part 135
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time total : 4500
ASRS Report	421970
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial
Events
Anomaly	incursion : landing without clearance non adherence : far non adherence : clearance
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Air Traffic Incident	Pilot Deviation

Narrative:

We were on a right downwind for runway 29R. Tower cleared us to land on runway 29L. We continued our approach and landed on runway 29R. It never registered to me that we were cleared to land on runway 29L. I have flown this particular leg (sfo-fat) for over 2 hours and very rarely have been cleared to land on runway 29L while on a right downwind for runway 29R. It should be noted that I had a slight cold which may have played a part in this matter. It should also be noted that fat almost always has their runways very dimly lit, with runway 29R being the brighter of the two. I feel that all of these factors played a part of landing on the wrong runway. The tower (during the subsequent phone call) told me they would not pursue me with a violation since there weren't any other aircraft involved. The bottom line is flying the same trip day after day can lead to complacency. Always stay alert.

Original NASA ASRS Text

Title: FLC OF A BA31 LANDED ON THE WRONG PARALLEL RWY BY MISTAKE.

Narrative: WE WERE ON A R DOWNWIND FOR RWY 29R. TWR CLRED US TO LAND ON RWY 29L. WE CONTINUED OUR APCH AND LANDED ON RWY 29R. IT NEVER REGISTERED TO ME THAT WE WERE CLRED TO LAND ON RWY 29L. I HAVE FLOWN THIS PARTICULAR LEG (SFO-FAT) FOR OVER 2 HRS AND VERY RARELY HAVE BEEN CLRED TO LAND ON RWY 29L WHILE ON A R DOWNWIND FOR RWY 29R. IT SHOULD BE NOTED THAT I HAD A SLIGHT COLD WHICH MAY HAVE PLAYED A PART IN THIS MATTER. IT SHOULD ALSO BE NOTED THAT FAT ALMOST ALWAYS HAS THEIR RWYS VERY DIMLY LIT, WITH RWY 29R BEING THE BRIGHTER OF THE TWO. I FEEL THAT ALL OF THESE FACTORS PLAYED A PART OF LNDG ON THE WRONG RWY. THE TWR (DURING THE SUBSEQUENT PHONE CALL) TOLD ME THEY WOULD NOT PURSUE ME WITH A VIOLATION SINCE THERE WEREN'T ANY OTHER ACFT INVOLVED. THE BOTTOM LINE IS FLYING THE SAME TRIP DAY AFTER DAY CAN LEAD TO COMPLACENCY. ALWAYS STAY ALERT.

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.