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An air carrier flight crew in an MD88 hit the wake of a foreign registered B767-200ER and rolled 5-15 degrees both directions during climb out.
| Attributes | |
| ACN | 340062 |
| Time | |
| Date | 199606 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : jfk |
| State Reference | NY |
| Altitude | msl bound lower : 1500 msl bound upper : 1800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90 tower : jfk |
| Operator | common carrier : air carrier |
| Make Model Name | MD-88 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude climbout : initial |
| Route In Use | departure sid : sid enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude climbout : initial |
| Route In Use | departure sid : sid |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 7500 flight time type : 140 |
| ASRS Report | 340062 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | inflight encounter other other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Deviation other |
Narrative:
Takeoff clearance issued following departure of foreign air carrier B767. Looked close, so asked tower to verify sufficient spacing. They said yes. Encountered wake turbulence at 1500 ft AGL resulting in two uncommanded 5-15 degree angle of bank rolls in either direction. Reported same to departure control. Felt set up by the tower. Callback conversation with reporter revealed the following information: the reporter said that he did inquire as to the spacing between the foreign registered air carrier's B767-200ER and his MD88, but the controller just repeated the takeoff clearance and finally said yes. He said that he could see the B767 and knew that it was too close, but he did not want to lose his slot so he took off anyway. Shortly after completing his departure turn (initial heading on a SID) and at about 1500-1800 ft they hit the B767's wake. The first officer was able to control the aircraft and stop the rolls without using full aileron deflection. They were abrupt and disturbing to the passenger, however. The reporter vowed to not allow himself to be put into this position again.
Original NASA ASRS Text
Title: AN ACR FLC IN AN MD88 HIT THE WAKE OF A FOREIGN REGISTERED B767-200ER AND ROLLED 5-15 DEGS BOTH DIRECTIONS DURING CLB OUT.
Narrative: TKOF CLRNC ISSUED FOLLOWING DEP OF FOREIGN ACR B767. LOOKED CLOSE, SO ASKED TWR TO VERIFY SUFFICIENT SPACING. THEY SAID YES. ENCOUNTERED WAKE TURB AT 1500 FT AGL RESULTING IN TWO UNCOMMANDED 5-15 DEG ANGLE OF BANK ROLLS IN EITHER DIRECTION. RPTED SAME TO DEP CTL. FELT SET UP BY THE TWR. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR SAID THAT HE DID INQUIRE AS TO THE SPACING BTWN THE FOREIGN REGISTERED ACR'S B767-200ER AND HIS MD88, BUT THE CTLR JUST REPEATED THE TKOF CLRNC AND FINALLY SAID YES. HE SAID THAT HE COULD SEE THE B767 AND KNEW THAT IT WAS TOO CLOSE, BUT HE DID NOT WANT TO LOSE HIS SLOT SO HE TOOK OFF ANYWAY. SHORTLY AFTER COMPLETING HIS DEP TURN (INITIAL HDG ON A SID) AND AT ABOUT 1500-1800 FT THEY HIT THE B767'S WAKE. THE FO WAS ABLE TO CTL THE ACFT AND STOP THE ROLLS WITHOUT USING FULL AILERON DEFLECTION. THEY WERE ABRUPT AND DISTURBING TO THE PAX, HOWEVER. THE RPTR VOWED TO NOT ALLOW HIMSELF TO BE PUT INTO THIS POS AGAIN.
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.