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A private small aircraft pilot had difficulty with improper ground control instructions and may have crossed a runway without clearance.
| Attributes | |
| ACN | 236337 |
| Time | |
| Date | 199303 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : sfo |
| State Reference | CA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zlc |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | ground other : taxi |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private pilot : instrument |
| Experience | flight time last 90 days : 40 flight time total : 820 flight time type : 230 |
| ASRS Report | 236337 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : ground |
| Qualification | controller : non radar |
| Events | |
| Anomaly | incursion : runway non adherence : clearance non adherence other other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | other other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
On taxi for departure, received instructions to taxi on txwys right, C for intersection departure (no intersection specified) and a runway hold that I thought was runway 28R (sfo international). Asked for clarification on intersection for departure and acknowledged hold for runway 28R. Ground specified intersection 'east' departure and did not respond to my hold acknowledgement on runway 28R. I acknowledged intersection 'east' and again asked for confirmation on hold for runway 28R. No response from ground control. Taxi to runway 28R. Hold on taxiway right. Ground control asked why I did not hold for runway 28L as specified. I responded that I thought hold was runway 28R, not runway 28L. Note: taxiway right does not cross runway 28L (although it does cross extended centerline west of runway 28L). Several air carrier planes were crossing runway 28L at the time. Probable causes: failure of myself to understand initial instructions. Failure of ground control to correct my readback (on 2 occasions). Confusions over a hold where taxiway did not cross the runway.
Original NASA ASRS Text
Title: A PVT SMA PLT HAD DIFFICULTY WITH IMPROPER GND CTL INSTRUCTIONS AND MAY HAVE CROSSED A RWY WITHOUT CLRNC.
Narrative: ON TAXI FOR DEP, RECEIVED INSTRUCTIONS TO TAXI ON TXWYS R, C FOR INTXN DEP (NO INTXN SPECIFIED) AND A RWY HOLD THAT I THOUGHT WAS RWY 28R (SFO INTL). ASKED FOR CLARIFICATION ON INTXN FOR DEP AND ACKNOWLEDGED HOLD FOR RWY 28R. GND SPECIFIED INTXN 'E' DEP AND DID NOT RESPOND TO MY HOLD ACKNOWLEDGEMENT ON RWY 28R. I ACKNOWLEDGED INTXN 'E' AND AGAIN ASKED FOR CONFIRMATION ON HOLD FOR RWY 28R. NO RESPONSE FROM GND CTL. TAXI TO RWY 28R. HOLD ON TXWY R. GND CTL ASKED WHY I DID NOT HOLD FOR RWY 28L AS SPECIFIED. I RESPONDED THAT I THOUGHT HOLD WAS RWY 28R, NOT RWY 28L. NOTE: TXWY R DOES NOT CROSS RWY 28L (ALTHOUGH IT DOES CROSS EXTENDED CTRLINE W OF RWY 28L). SEVERAL ACR PLANES WERE XING RWY 28L AT THE TIME. PROBABLE CAUSES: FAILURE OF MYSELF TO UNDERSTAND INITIAL INSTRUCTIONS. FAILURE OF GND CTL TO CORRECT MY READBACK (ON 2 OCCASIONS). CONFUSIONS OVER A HOLD WHERE TXWY DID NOT CROSS THE RWY.
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.