 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
DC10 blundered into turbulence at night over the pacific. Unaware of impending encounter until last min. Passenger were injured and aircraft landed at sfo rather than dfw, their original destination.
| Attributes | |
| ACN | 358121 |
| Time | |
| Date | 199701 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : hnl |
| State Reference | HI |
| Altitude | msl bound lower : 34000 msl bound upper : 34000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa |
| Operator | common carrier : air carrier |
| Make Model Name | DC-10 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other other |
| Route In Use | enroute : pacific enroute airway : zoa |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 225 flight time total : 8000 flight time type : 5000 |
| ASRS Report | 358121 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | pilot : instrument pilot : flight engineer pilot : commercial |
| ASRS Report | 358125 |
| Events | |
| Anomaly | inflight encounter : weather inflight encounter other other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other Other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | other |
Narrative:
Flight from hnl to dfw painting WX to our left (north) of us, with tops indicating at or below our altitude. Seat belt sign on since takeoff and left on due to the occasional light chop. Captain briefed passenger and #1 flight attendant as to the bumps and possible WX ahead. Our direction of flight and on course appeared to clear the WX ahead so we did not deviate from airway. At approximately XA18Z it appeared that we would not clear a buildup (this was shown only by a silhouette of a cloud at the time of a lightning flash). I initiated a 15 degree right turn to clear, and we passed through a cloud with 1 large jolt. We then got a call from the back that passenger were injured and called to alert other flts and our company. We elected to land sfo rather than hnl as to avoid going through WX again. We were at approximately 6 mins prior to our etp point. We got a revised clearance and at about 30 mins prior to landing sfo we advised ATC and dumped approximately 15000 pounds to get to a landing weight of 403000 pounds. Approach and landing were uneventful and were met by paramedics. Police, and airport authority/authorized in sfo.
Original NASA ASRS Text
Title: DC10 BLUNDERED INTO TURB AT NIGHT OVER THE PACIFIC. UNAWARE OF IMPENDING ENCOUNTER UNTIL LAST MIN. PAX WERE INJURED AND ACFT LANDED AT SFO RATHER THAN DFW, THEIR ORIGINAL DEST.
Narrative: FLT FROM HNL TO DFW PAINTING WX TO OUR L (N) OF US, WITH TOPS INDICATING AT OR BELOW OUR ALT. SEAT BELT SIGN ON SINCE TKOF AND LEFT ON DUE TO THE OCCASIONAL LIGHT CHOP. CAPT BRIEFED PAX AND #1 FLT ATTENDANT AS TO THE BUMPS AND POSSIBLE WX AHEAD. OUR DIRECTION OF FLT AND ON COURSE APPEARED TO CLR THE WX AHEAD SO WE DID NOT DEVIATE FROM AIRWAY. AT APPROX XA18Z IT APPEARED THAT WE WOULD NOT CLR A BUILDUP (THIS WAS SHOWN ONLY BY A SILHOUETTE OF A CLOUD AT THE TIME OF A LIGHTNING FLASH). I INITIATED A 15 DEG R TURN TO CLR, AND WE PASSED THROUGH A CLOUD WITH 1 LARGE JOLT. WE THEN GOT A CALL FROM THE BACK THAT PAX WERE INJURED AND CALLED TO ALERT OTHER FLTS AND OUR COMPANY. WE ELECTED TO LAND SFO RATHER THAN HNL AS TO AVOID GOING THROUGH WX AGAIN. WE WERE AT APPROX 6 MINS PRIOR TO OUR ETP POINT. WE GOT A REVISED CLRNC AND AT ABOUT 30 MINS PRIOR TO LNDG SFO WE ADVISED ATC AND DUMPED APPROX 15000 LBS TO GET TO A LNDG WT OF 403000 LBS. APCH AND LNDG WERE UNEVENTFUL AND WERE MET BY PARAMEDICS. POLICE, AND ARPT AUTH IN SFO.
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.