<< >> NASA ASRS Report 209893, May 1992

An large transport air carrier frtr crew misinterpreted their taxi clearance and thought that they may have broken a clearance.

Attributes
ACN	209893
Time
Date	199205
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : phl
State Reference	PA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90
Operator	common carrier : air carrier
Make Model Name	Large Transport
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 70 flight time total : 8300 flight time type : 2000
ASRS Report	209893
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

We were taxiing for takeoff from the cargo ramp and we were holding short of 09R on taxiway ff. After landing traffic cleared we were told to taxi to runway 09L (9L were used for takeoff and 9R for land). We taxied all the way to 9L via ff and held short of 9L for takeoff however, after we got to 9L an aircraft following us was told to 'hold short on 9L on ff' leading us to believe that we might have done something wrong. Taxiway ff does not cross 9L, I crossed the approach path of 9L. We were led to believe based on earlier experiences in phl that since the taxiway does not cross the actual runway, runway 9L was only used for takeoff and taxiway ff only crosses the approach path of runway 9L, that we were cleared all the way. If we for some reason did something illegal it was not intentional. However this should possibly be addressed on the approach plate or somewhere else.

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Original NASA ASRS Text

Title: AN LGT ACR FRTR CREW MISINTERPRETED THEIR TAXI CLRNC AND THOUGHT THAT THEY MAY HAVE BROKEN A CLRNC.

Narrative: WE WERE TAXIING FOR TKOF FROM THE CARGO RAMP AND WE WERE HOLDING SHORT OF 09R ON TAXIWAY FF. AFTER LNDG TFC CLRED WE WERE TOLD TO TAXI TO RWY 09L (9L WERE USED FOR TKOF AND 9R FOR LAND). WE TAXIED ALL THE WAY TO 9L VIA FF AND HELD SHORT OF 9L FOR TKOF HOWEVER, AFTER WE GOT TO 9L AN ACFT FOLLOWING US WAS TOLD TO 'HOLD SHORT ON 9L ON FF' LEADING US TO BELIEVE THAT WE MIGHT HAVE DONE SOMETHING WRONG. TAXIWAY FF DOES NOT CROSS 9L, I CROSSED THE APCH PATH OF 9L. WE WERE LED TO BELIEVE BASED ON EARLIER EXPERIENCES IN PHL THAT SINCE THE TAXIWAY DOES NOT CROSS THE ACTUAL RWY, RWY 9L WAS ONLY USED FOR TKOF AND TAXIWAY FF ONLY CROSSES THE APCH PATH OF RWY 9L, THAT WE WERE CLRED ALL THE WAY. IF WE FOR SOME REASON DID SOMETHING ILLEGAL IT WAS NOT INTENTIONAL. HOWEVER THIS SHOULD POSSIBLY BE ADDRESSED ON THE APCH PLATE OR SOMEWHERE ELSE.

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.