 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Flight crew of an large transport air carrier aircraft refused routing from ATC at high altitude cruise due to mountain wave warning.
| Attributes | |
| ACN | 258665 |
| Time | |
| Date | 199312 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : abq |
| State Reference | NM |
| Altitude | msl bound lower : 37000 msl bound upper : 37000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : flight engineer |
| Experience | flight time last 90 days : 150 flight time total : 7000 flight time type : 1400 |
| ASRS Report | 258665 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 100 flight time total : 5000 flight time type : 600 |
| ASRS Report | 258800 |
| Events | |
| Anomaly | inflight encounter : weather non adherence : clearance non adherence : far other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | other |
| Consequence | faa : reviewed incident with flight crew faa : assigned or threatened penalties |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Airline has extremely well-defined procedures for avoiding mountain wave phenomenon. On this flight we were flying a mountain wave deviation route. In the vicinity of abq, NM, ATC attempted to give us a route clearance which would have penetrated the cim mountain wave area which was code red (must avoid) at the time. As an accommodation to ATC, we informed them that we could deviate 5 mi north of course. They stated that this was adequate and gave us a 5 mi north offset clearance. Shortly thereafter, ZAB insisted we must accept a route clearance which would enter the cim mountain wave area. We were forced by air carrier X procedures to refuse the ATC route clearance and were informed that a pilot violation would be filed.
Original NASA ASRS Text
Title: FLC OF AN LGT ACR ACFT REFUSED ROUTING FROM ATC AT HIGH ALT CRUISE DUE TO MOUNTAIN WAVE WARNING.
Narrative: AIRLINE HAS EXTREMELY WELL-DEFINED PROCS FOR AVOIDING MOUNTAIN WAVE PHENOMENON. ON THIS FLT WE WERE FLYING A MOUNTAIN WAVE DEV RTE. IN THE VICINITY OF ABQ, NM, ATC ATTEMPTED TO GIVE US A RTE CLRNC WHICH WOULD HAVE PENETRATED THE CIM MOUNTAIN WAVE AREA WHICH WAS CODE RED (MUST AVOID) AT THE TIME. AS AN ACCOMMODATION TO ATC, WE INFORMED THEM THAT WE COULD DEVIATE 5 MI N OF COURSE. THEY STATED THAT THIS WAS ADEQUATE AND GAVE US A 5 MI N OFFSET CLRNC. SHORTLY THEREAFTER, ZAB INSISTED WE MUST ACCEPT A RTE CLRNC WHICH WOULD ENTER THE CIM MOUNTAIN WAVE AREA. WE WERE FORCED BY ACR X PROCS TO REFUSE THE ATC RTE CLRNC AND WERE INFORMED THAT A PLT VIOLATION WOULD BE FILED.
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.