An SF340 on a night operation, in WX, is alerted to a low altitude warning by approach controller at...

Attributes
ACN	466070
Time
Date	200003
Day	Sat
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : crw.airport
State Reference	WV
Altitude	msl bound lower : 2600 msl bound upper : 4000
Environment
Flight Conditions	IMC
Weather Elements	Fog Ice
Light	Night
Aircraft 1
Controlling Facilities	tracon : crw.tracon
Operator	common carrier : air carrier
Make Model Name	SF 340B
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 23
Flight Phase	descent : intermediate altitude
Route In Use	approach : instrument precision arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4000 flight time type : 3000
ASRS Report	466070
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	other anomaly other
Independent Detector	atc equipment : msaw other controllera
Resolutory Action	controller : issued alert flight crew : executed missed approach other
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	ATC Human Performance Environmental Factor Flight Crew Human Performance ATC Facility
Primary Problem	ATC Facility

Narrative:

While being vectored for ILS runway 23 at crw, a low altitude alert was issued by crw approach while we were descending through 3600 ft MSL, approach showed us at 2600 ft MSL and told us to reset altimeter. Our altimeters were already set correctly. He then said we were at 2100 ft MSL and to climb up to 2600 ft MSL. We were already at 3100 ft MSL so we started to climb and requested 4000 ft MSL. By the time we got to 4000 ft MSL, he said that he reset his equipment and showed us level at 4000 ft MSL. He also said that his equipment was set wrong and at fault. We were indeed well above 2600 ft MSL before the FAF and were never below 3100 ft MSL. The following vectors and approach were uneventful.

Original NASA ASRS Text

Title: AN SF340 ON A NIGHT OP, IN WX, IS ALERTED TO A LOW ALT WARNING BY APCH CTLR AT CRW, WV.

Narrative: WHILE BEING VECTORED FOR ILS RWY 23 AT CRW, A LOW ALT ALERT WAS ISSUED BY CRW APCH WHILE WE WERE DSNDING THROUGH 3600 FT MSL, APCH SHOWED US AT 2600 FT MSL AND TOLD US TO RESET ALTIMETER. OUR ALTIMETERS WERE ALREADY SET CORRECTLY. HE THEN SAID WE WERE AT 2100 FT MSL AND TO CLB UP TO 2600 FT MSL. WE WERE ALREADY AT 3100 FT MSL SO WE STARTED TO CLB AND REQUESTED 4000 FT MSL. BY THE TIME WE GOT TO 4000 FT MSL, HE SAID THAT HE RESET HIS EQUIP AND SHOWED US LEVEL AT 4000 FT MSL. HE ALSO SAID THAT HIS EQUIP WAS SET WRONG AND AT FAULT. WE WERE INDEED WELL ABOVE 2600 FT MSL BEFORE THE FAF AND WERE NEVER BELOW 3100 FT MSL. THE FOLLOWING VECTORS AND APCH WERE UNEVENTFUL.

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.

An SF340 on a night operation, in WX, is alerted to a low altitude warning by approach controller at crw, wv.