Altitude deviation altitude excursion performed after receipt of GPWS which was determined to be a f...

Attributes
ACN	242257
Time
Date	199305
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : sel airport : ksel
State Reference	FO
Altitude	msl bound lower : 6000 msl bound upper : 9000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 4 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent : approach descent other
Route In Use	enroute : on vectors enroute airway : sel
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 20000 flight time type : 1000
ASRS Report	242257
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical altitude deviation : excursion from assigned altitude non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : exited adverse environment flight crew : took evasive action flight crew : overcame equipment problem
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

In IMC, approximately 2 NM west of sel VOR on ATC assigned heading of 290 degrees, cleared from 8000 ft to 2500 ft. At approximately 6000 ft received continuous GPWS warning 'pull up, terrain' and master warning light came on. Initiated climb and reidented sel VOR and reverified position with raw data on navigation display (raw data displayed on both navigation displays at time of warning -- #1 on sel VOR and #2 on kip VOR). GPWS was turned off and flight continued without further incident. During pull-up from GPWS warning, altitude reached approximately 9000 ft before descent reestablished. Attempted to communicate to sel approach control reason for climb, but unable due to language barrier. Reason for incident was faulty GPWS.

Original NASA ASRS Text

Title: ALTDEV ALT EXCURSION PERFORMED AFTER RECEIPT OF GPWS WHICH WAS DETERMINED TO BE A FALSE ALARM.

Narrative: IN IMC, APPROX 2 NM W OF SEL VOR ON ATC ASSIGNED HDG OF 290 DEGS, CLRED FROM 8000 FT TO 2500 FT. AT APPROX 6000 FT RECEIVED CONTINUOUS GPWS WARNING 'PULL UP, TERRAIN' AND MASTER WARNING LIGHT CAME ON. INITIATED CLB AND REIDENTED SEL VOR AND REVERIFIED POS WITH RAW DATA ON NAV DISPLAY (RAW DATA DISPLAYED ON BOTH NAV DISPLAYS AT TIME OF WARNING -- #1 ON SEL VOR AND #2 ON KIP VOR). GPWS WAS TURNED OFF AND FLT CONTINUED WITHOUT FURTHER INCIDENT. DURING PULL-UP FROM GPWS WARNING, ALT REACHED APPROX 9000 FT BEFORE DSCNT REESTABLISHED. ATTEMPTED TO COMMUNICATE TO SEL APCH CTL REASON FOR CLB, BUT UNABLE DUE TO LANGUAGE BARRIER. REASON FOR INCIDENT WAS FAULTY GPWS.

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.

Altitude deviation altitude excursion performed after receipt of GPWS which was determined to be a false alarm.