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Parallel runway operatoin. Large transport encounters jet wash at rotation from aircraft holding to cross other runway.
| Attributes | |
| ACN | 92706 |
| Time | |
| Date | 198808 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : lax |
| State Reference | CA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : hya |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | ground : holding ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : cfi pilot : flight engineer |
| Experience | flight time last 90 days : 210 flight time total : 10000 flight time type : 1500 |
| ASRS Report | 92706 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
Flight was cleared for takeoff. Runway 25L at lax. At the far end of the runway there was an medium large transport and medium large transport Y hold between runway 25R and 25L. They were at either 47H or 45H. It looked as though the tail of the medium large transport Y was just at the end of runway edge line. We started the takeoff roll, got to V1 vr. Started our rotation as we came abeam the medium large transport and medium large transport Y. At that time our aircraft was hit with the full jet blast of the medium large transport and medium large transport Y that had just started to taxi across runway 25R. First, I feel that the taxiway that they were on (both) was too small for both airplanes. Second, the tower should be aware of where the jet blast is going when the tail is pointed on the runway being used for takeoff or lndgs. Callback conversation with reporter revealed the following: neither reporter nor the captain talked with lax tower reference the incident. Claims this is happening frequently especially for aci with gate positions on the west part of the airport. Feels had it been a widebody transport it would have really gotten interesting. Did not follow up because it was beginning of a four day sequence.
Original NASA ASRS Text
Title: PARALLEL RWY OPERATOIN. LGT ENCOUNTERS JET WASH AT ROTATION FROM ACFT HOLDING TO CROSS OTHER RWY.
Narrative: FLT WAS CLRED FOR TKOF. RWY 25L AT LAX. AT THE FAR END OF THE RWY THERE WAS AN MLG AND MLG Y HOLD BTWN RWY 25R AND 25L. THEY WERE AT EITHER 47H OR 45H. IT LOOKED AS THOUGH THE TAIL OF THE MLG Y WAS JUST AT THE END OF RWY EDGE LINE. WE STARTED THE TKOF ROLL, GOT TO V1 VR. STARTED OUR ROTATION AS WE CAME ABEAM THE MLG AND MLG Y. AT THAT TIME OUR ACFT WAS HIT WITH THE FULL JET BLAST OF THE MLG AND MLG Y THAT HAD JUST STARTED TO TAXI ACROSS RWY 25R. FIRST, I FEEL THAT THE TXWY THAT THEY WERE ON (BOTH) WAS TOO SMALL FOR BOTH AIRPLANES. SECOND, THE TWR SHOULD BE AWARE OF WHERE THE JET BLAST IS GOING WHEN THE TAIL IS POINTED ON THE RWY BEING USED FOR TKOF OR LNDGS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: NEITHER RPTR NOR THE CAPT TALKED WITH LAX TWR REFERENCE THE INCIDENT. CLAIMS THIS IS HAPPENING FREQUENTLY ESPECIALLY FOR ACI WITH GATE POSITIONS ON THE WEST PART OF THE ARPT. FEELS HAD IT BEEN A WDB IT WOULD HAVE REALLY GOTTEN INTERESTING. DID NOT FOLLOW UP BECAUSE IT WAS BEGINNING OF A FOUR DAY SEQUENCE.
Data retrieved from NASA's ASRS site as of August 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.