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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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A parachute jump aircraft at 14500 ft monitoring ARTCC frequency hears a transmission from the controller advising of traffic, however, the transmission is blocked. The reporter learns later that a B737 pilot complained that a jumper had passed close to his aircraft.
| Attributes | |
| ACN | 382272 |
| Time | |
| Date | 199710 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : jot |
| State Reference | IL |
| Altitude | msl bound lower : 14500 msl bound upper : 14500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other cruise other |
| Flight Plan | None |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : cfi pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 300 flight time total : 1100 flight time type : 300 |
| ASRS Report | 382272 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac inflight encounter other non adherence : far other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Miss Distance | horizontal : 500 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
On jump run I had heard a transmission of traffic, however, it was stepped on. I never acknowledged the TA. I had cleared the area and was well within my hot NOTAM area. Next transmission was that traffic was behind me. A B737 complained that a jumper had gone by his windscreen. Contributing factors: high angle of attack, higher altitude than other traffic, poor visibility to where traffic is below due to cowling and cargo bars, lack of communication, failure to clear area of IFR traffic after a 2 min warning is given to center. No corrective actions could be done by myself because of lack of notice to impending traffic. Only thing to make things different for me is to ask for clarification of traffic each time someone steps on transmission.
Original NASA ASRS Text
Title: A PARACHUTE JUMP ACFT AT 14500 FT MONITORING ARTCC FREQ HEARS A XMISSION FROM THE CTLR ADVISING OF TFC, HOWEVER, THE XMISSION IS BLOCKED. THE RPTR LEARNS LATER THAT A B737 PLT COMPLAINED THAT A JUMPER HAD PASSED CLOSE TO HIS ACFT.
Narrative: ON JUMP RUN I HAD HEARD A XMISSION OF TFC, HOWEVER, IT WAS STEPPED ON. I NEVER ACKNOWLEDGED THE TA. I HAD CLRED THE AREA AND WAS WELL WITHIN MY HOT NOTAM AREA. NEXT XMISSION WAS THAT TFC WAS BEHIND ME. A B737 COMPLAINED THAT A JUMPER HAD GONE BY HIS WINDSCREEN. CONTRIBUTING FACTORS: HIGH ANGLE OF ATTACK, HIGHER ALT THAN OTHER TFC, POOR VISIBILITY TO WHERE TFC IS BELOW DUE TO COWLING AND CARGO BARS, LACK OF COM, FAILURE TO CLR AREA OF IFR TFC AFTER A 2 MIN WARNING IS GIVEN TO CTR. NO CORRECTIVE ACTIONS COULD BE DONE BY MYSELF BECAUSE OF LACK OF NOTICE TO IMPENDING TFC. ONLY THING TO MAKE THINGS DIFFERENT FOR ME IS TO ASK FOR CLARIFICATION OF TFC EACH TIME SOMEONE STEPS ON XMISSION.
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.