A lear 25 atx makes approach to yyc airport to lower than authority/authorized minimums, makes misse...

Attributes
ACN	353303
Time
Date	199611
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : yyc airport : cyyc
State Reference	AB
Altitude	msl bound lower : 60002 msl bound upper : 22000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : czeg
Operator	common carrier : air taxi
Make Model Name	Learjet 25
Operating Under FAR Part	Part 135
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude other
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 11000 flight time type : 6000
ASRS Report	353303
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi pilot : commercial
Experience	flight time last 90 days : 200 flight time total : 3500 flight time type : 130
ASRS Report	352834
Events
Anomaly	aircraft equipment problem : critical inflight encounter other non adherence : far non adherence : published procedure other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem flight crew : regained aircraft control flight crew : declared emergency other
Consequence	other
Supplementary
Primary Problem	Weather
Air Traffic Incident	Pilot Deviation other

Narrative:

Problem arose due to severe icing conditions. Reported conditions were not what the reality was (WX was below lowest minimums for our operations but was reported to be at our lowest operations minimums). After executing a missed ILS approach, we climbed to FL220 and leveled off. Both engines flamed out within 5 seconds of each other. Holding altitude and letting aircraft speed slow, we determined that a relight was possible. After relighting both engines, we proceeded to edmonton, alberta, as an alternate. (On descent and climb out, we flew through an inversion layer.) we were attempting to make our contracted destination. WX report (ATIS) was not accurate, the icing conditions were much worse than reported. Crew should have elected to go to alternate (not attempting approach to calgary, alberta). Crew had fuel considerations to consider also. Icing conditions seemed to be so severe that aircraft's anti- and de-icing equipment could not handle it. Supplemental information from acn 352834: the problem arose from icing. On the descent to calgary through 12000 ft on down to 6000 ft, we picked up most of the icing, considered to be moderate to severe. Icing equipment on. Nacelles heat on, wings and stabilizer heat on. Shot ILS into calgary international to minimums. Missed approach. Picked up more icing to about the same altitude -- ignition was on. Coming out of visible moisture at approximately 12000 ft, ignition was turned off. Emergency was declared. Proceeded on same clearance to alternate airport (cyxd -- edmonton municipal). Possible, most likely cause -- ice ingestion. In edmonton, replaced right engine, bent blades on first stage 4, after 'dressing up' left engine (several nicks). Suggestions: leave ignition on for undetermined amount of time after encountering severe icing conditions, as well as icing (obviously) equipment on until all indication of any icing is gone.

Original NASA ASRS Text

Title: A LEAR 25 ATX MAKES APCH TO YYC ARPT TO LOWER THAN AUTH MINIMUMS, MAKES MISSED APCH, CLBS BACK THROUGH THE HVY ICING AND AFTER TURNING OFF INFLT IGNITION WHEN IN THE CLR, BOTH ENGS FLAME OUT. EMER DECLARED. PROCEED TO ALTERNATE.

Narrative: PROB AROSE DUE TO SEVERE ICING CONDITIONS. RPTED CONDITIONS WERE NOT WHAT THE REALITY WAS (WX WAS BELOW LOWEST MINIMUMS FOR OUR OPS BUT WAS RPTED TO BE AT OUR LOWEST OPS MINIMUMS). AFTER EXECUTING A MISSED ILS APCH, WE CLBED TO FL220 AND LEVELED OFF. BOTH ENGS FLAMED OUT WITHIN 5 SECONDS OF EACH OTHER. HOLDING ALT AND LETTING ACFT SPD SLOW, WE DETERMINED THAT A RELIGHT WAS POSSIBLE. AFTER RELIGHTING BOTH ENGS, WE PROCEEDED TO EDMONTON, ALBERTA, AS AN ALTERNATE. (ON DSCNT AND CLBOUT, WE FLEW THROUGH AN INVERSION LAYER.) WE WERE ATTEMPTING TO MAKE OUR CONTRACTED DEST. WX RPT (ATIS) WAS NOT ACCURATE, THE ICING CONDITIONS WERE MUCH WORSE THAN RPTED. CREW SHOULD HAVE ELECTED TO GO TO ALTERNATE (NOT ATTEMPTING APCH TO CALGARY, ALBERTA). CREW HAD FUEL CONSIDERATIONS TO CONSIDER ALSO. ICING CONDITIONS SEEMED TO BE SO SEVERE THAT ACFT'S ANTI- AND DE-ICING EQUIP COULD NOT HANDLE IT. SUPPLEMENTAL INFO FROM ACN 352834: THE PROB AROSE FROM ICING. ON THE DSCNT TO CALGARY THROUGH 12000 FT ON DOWN TO 6000 FT, WE PICKED UP MOST OF THE ICING, CONSIDERED TO BE MODERATE TO SEVERE. ICING EQUIP ON. NACELLES HEAT ON, WINGS AND STABILIZER HEAT ON. SHOT ILS INTO CALGARY INTL TO MINIMUMS. MISSED APCH. PICKED UP MORE ICING TO ABOUT THE SAME ALT -- IGNITION WAS ON. COMING OUT OF VISIBLE MOISTURE AT APPROX 12000 FT, IGNITION WAS TURNED OFF. EMER WAS DECLARED. PROCEEDED ON SAME CLRNC TO ALTERNATE ARPT (CYXD -- EDMONTON MUNICIPAL). POSSIBLE, MOST LIKELY CAUSE -- ICE INGESTION. IN EDMONTON, REPLACED R ENG, BENT BLADES ON FIRST STAGE 4, AFTER 'DRESSING UP' L ENG (SEVERAL NICKS). SUGGESTIONS: LEAVE IGNITION ON FOR UNDETERMINED AMOUNT OF TIME AFTER ENCOUNTERING SEVERE ICING CONDITIONS, AS WELL AS ICING (OBVIOUSLY) EQUIP ON UNTIL ALL INDICATION OF ANY ICING IS GONE.

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.

A lear 25 atx makes approach to yyc airport to lower than authority/authorized minimums, makes missed approach, climbs back through the heavy icing and after turning off in-flight ignition when in the clear, both engines flame out. Emergency declared. Proceed to alternate.