<< >> NASA ASRS Report 352873, November 1996

Unauthorized runway use entry operation when air freighter crew suffers from spatial disorientation regarding their starting point in a night taxi operation.

Attributes
ACN	352873
Time
Date	199611
Day	Sat
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : tpe
State Reference	FO
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 121
Navigation In Use	Other Other
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 150 flight time total : 18000 flight time type : 1000
ASRS Report	352873
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : atp pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 67 flight time total : 2800 flight time type : 200
ASRS Report	352872
Events
Anomaly	incursion : runway non adherence : clearance
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : became reoriented none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Aircraft was on cargo ramp. Our taxi clearance was taxi on runway 23L to west cross point to runway 6. Runway 6 was the active runway, runway 23L/5R used for takeoff only (if requested by pilots) and runway 23R/5L was closed due to construction. We taxied onto runway 23R thinking we were on runway 23L. Another aircraft had been told to follow us to runway 6. We realized the taxi mistake when ground told air carrier Y not to follow us. We immediately taxied onto runway 23L and continued to runway 6. Ground control did not notify us of the taxi mistake. The mistake was caused by misidenting the starting point of the taxi route. We taxied onto N9 thinking it was N7. Other factors: this flight was supposed to operate hong kong to subic bay (vhhh-rplb). Due to WX at subic bay we diverted to taipei. We were on the ground at taipei for approximately 3 hours. We then continued to subic bay.

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Original NASA ASRS Text

Title: UNAUTH RWY USE ENTRY OP WHEN AIR FREIGHTER CREW SUFFERS FROM SPATIAL DISORIENTATION REGARDING THEIR STARTING POINT IN A NIGHT TAXI OP.

Narrative: ACFT WAS ON CARGO RAMP. OUR TAXI CLRNC WAS TAXI ON RWY 23L TO W CROSS POINT TO RWY 6. RWY 6 WAS THE ACTIVE RWY, RWY 23L/5R USED FOR TKOF ONLY (IF REQUESTED BY PLTS) AND RWY 23R/5L WAS CLOSED DUE TO CONSTRUCTION. WE TAXIED ONTO RWY 23R THINKING WE WERE ON RWY 23L. ANOTHER ACFT HAD BEEN TOLD TO FOLLOW US TO RWY 6. WE REALIZED THE TAXI MISTAKE WHEN GND TOLD ACR Y NOT TO FOLLOW US. WE IMMEDIATELY TAXIED ONTO RWY 23L AND CONTINUED TO RWY 6. GND CTL DID NOT NOTIFY US OF THE TAXI MISTAKE. THE MISTAKE WAS CAUSED BY MISIDENTING THE STARTING POINT OF THE TAXI RTE. WE TAXIED ONTO N9 THINKING IT WAS N7. OTHER FACTORS: THIS FLT WAS SUPPOSED TO OPERATE HONG KONG TO SUBIC BAY (VHHH-RPLB). DUE TO WX AT SUBIC BAY WE DIVERTED TO TAIPEI. WE WERE ON THE GND AT TAIPEI FOR APPROX 3 HRS. WE THEN CONTINUED TO SUBIC BAY.

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.