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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Pilot of a cessna super skymaster, C337, lost contact with ARTCC after receiving approach clearance to an uncontrolled airport (tex), surrounded by very high rising terrain in all quadrants. He could hear the preceding aircraft cancel their IFR clearance, but did not hear ARTCC acknowledge at 12000 ft MSL. The nearest airway has an MEA of 16200 ft (V361).
| Attributes | |
| ACN | 409430 |
| Time | |
| Date | 199807 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : tex |
| State Reference | CO |
| Altitude | msl bound lower : 11000 msl bound upper : 11300 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv tracon : rdu |
| Operator | general aviation : personal |
| Make Model Name | Super Skymaster |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | other other : other pilot : private pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 30 flight time total : 2500 flight time type : 2000 |
| ASRS Report | 409430 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | other physical facility |
Narrative:
IFR from O15 (turlock, ca) generally clear WX till hanksville, co, in and out of cumulus clouds to cones VOR. Cleared for approach by ZDV (a navajo) was cleared ahead of me and I was cleared after he shot the approach (I heard him cancel but no acknowledgment from ZDV was heard). I continued the approach from cones VOR (localizer DME runway 9). I had been cleared down to 12000 ft before reaching cones and followed the approach, broke out at 11300 ft with 10+ mi visibility, was in contact with telluride unicom and announced my position. Unicom asked us to cancel as soon as possible as 3 aircraft were waiting to depart. Tried ZDV but no acknowledgment. Completed landing and FBO told me ZDV wanted a telephone call -- collect to I believe ARTCC supervisor. Tried but phone number was inoperative. Called FSS, they could not put me in contact with ZDV, but accepted the cancellation. Problem: did ZDV get plane ahead of me cancellation. I had no further communication with ZDV after receiving my clearance. FBO personnel say ZDV cannot be contacted below 14000 ft. How can I contact ZDV on the ground or when visual landing assured. Unfortunately I was given a phone number not working. I did not start the approach from cones VOR until the navajo ahead had announced his cancellation. We did not have a conflict.
Original NASA ASRS Text
Title: PLT OF A CESSNA SUPER SKYMASTER, C337, LOST CONTACT WITH ARTCC AFTER RECEIVING APCH CLRNC TO AN UNCTLED ARPT (TEX), SURROUNDED BY VERY HIGH RISING TERRAIN IN ALL QUADRANTS. HE COULD HEAR THE PRECEDING ACFT CANCEL THEIR IFR CLRNC, BUT DID NOT HEAR ARTCC ACKNOWLEDGE AT 12000 FT MSL. THE NEAREST AIRWAY HAS AN MEA OF 16200 FT (V361).
Narrative: IFR FROM O15 (TURLOCK, CA) GENERALLY CLR WX TILL HANKSVILLE, CO, IN AND OUT OF CUMULUS CLOUDS TO CONES VOR. CLRED FOR APCH BY ZDV (A NAVAJO) WAS CLRED AHEAD OF ME AND I WAS CLRED AFTER HE SHOT THE APCH (I HEARD HIM CANCEL BUT NO ACKNOWLEDGMENT FROM ZDV WAS HEARD). I CONTINUED THE APCH FROM CONES VOR (LOC DME RWY 9). I HAD BEEN CLRED DOWN TO 12000 FT BEFORE REACHING CONES AND FOLLOWED THE APCH, BROKE OUT AT 11300 FT WITH 10+ MI VISIBILITY, WAS IN CONTACT WITH TELLURIDE UNICOM AND ANNOUNCED MY POS. UNICOM ASKED US TO CANCEL ASAP AS 3 ACFT WERE WAITING TO DEPART. TRIED ZDV BUT NO ACKNOWLEDGMENT. COMPLETED LNDG AND FBO TOLD ME ZDV WANTED A TELEPHONE CALL -- COLLECT TO I BELIEVE ARTCC SUPVR. TRIED BUT PHONE NUMBER WAS INOP. CALLED FSS, THEY COULD NOT PUT ME IN CONTACT WITH ZDV, BUT ACCEPTED THE CANCELLATION. PROB: DID ZDV GET PLANE AHEAD OF ME CANCELLATION. I HAD NO FURTHER COM WITH ZDV AFTER RECEIVING MY CLRNC. FBO PERSONNEL SAY ZDV CANNOT BE CONTACTED BELOW 14000 FT. HOW CAN I CONTACT ZDV ON THE GND OR WHEN VISUAL LNDG ASSURED. UNFORTUNATELY I WAS GIVEN A PHONE NUMBER NOT WORKING. I DID NOT START THE APCH FROM CONES VOR UNTIL THE NAVAJO AHEAD HAD ANNOUNCED HIS CANCELLATION. WE DID NOT HAVE A CONFLICT.
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.