CFI and student on an INS training flight in IFR conditions encounter unforecast severe turbulence a...

Attributes
ACN	139832
Time
Date	199003
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : hgr
State Reference	MD
Altitude	msl bound lower : 4500 msl bound upper : 5000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	climbout : intermediate altitude cruise other cruise other
Route In Use	enroute airway : v501
Flight Plan	IFR
Person 1
Affiliation	Other
Function	instruction : instructor oversight : pic
Qualification	pilot : atp pilot : cfi pilot : instrument
Experience	flight time last 90 days : 150 flight time total : 3300 flight time type : 700
ASRS Report	139832
Person 2
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : private
Events
Anomaly	altitude deviation : excursion from assigned altitude inflight encounter : weather other anomaly
Independent Detector	other flight crewa
Resolutory Action	flight crew : exited adverse environment
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	other

Narrative:

Departed hgr IFR climbing direct to hgr VOR to 5000' with ZDC 134.15. Upon reaching hgr VOR we were handed off to dulles approach 126.1. Upon reaching 5000' and before reporting level at 5000', we experienced moderate to severe turbulence and wind shear with vsi indication at 1500-2000 FPM descent rate with full power and pitch attitude to vy airspeed 76 KTS. We lost 500' within 10-15 seconds and experienced 40-50 degree banks. I then took control of the aircraft from my student and reported to dulles approach unable to maintain altitude and request lower. Dulles approach approved lower to 4000'. We then requested to return to hgr and a turn to the east for cell avoidance. This was approved and we were handed off to ZDC. We requested localizer approach to hgr. We were given radar vectors to intercept the localizer. During this time we were able to maintain 4000' and the ride smoothed out. We then shot the localizer 27 approach to hgr and landed safely. After I got the aircraft under control and we had switched from dulles approach to ZDC I reported moderate to severe turbulence south of the hgr VOR. A PIREP was issued to FSS by center.

Original NASA ASRS Text

Title: CFI AND STUDENT ON AN INS TRAINING FLT IN IFR CONDITIONS ENCOUNTER UNFORECAST SEVERE TURB AT 5000' WHILE CLIMBING OUT OF HGR.

Narrative: DEPARTED HGR IFR CLBING DIRECT TO HGR VOR TO 5000' WITH ZDC 134.15. UPON REACHING HGR VOR WE WERE HANDED OFF TO DULLES APCH 126.1. UPON REACHING 5000' AND BEFORE RPTING LEVEL AT 5000', WE EXPERIENCED MODERATE TO SEVERE TURB AND WIND SHEAR WITH VSI INDICATION AT 1500-2000 FPM DSCNT RATE WITH FULL PWR AND PITCH ATTITUDE TO VY AIRSPD 76 KTS. WE LOST 500' WITHIN 10-15 SECS AND EXPERIENCED 40-50 DEG BANKS. I THEN TOOK CONTROL OF THE ACFT FROM MY STUDENT AND RPTED TO DULLES APCH UNABLE TO MAINTAIN ALT AND REQUEST LOWER. DULLES APCH APPROVED LOWER TO 4000'. WE THEN REQUESTED TO RETURN TO HGR AND A TURN TO THE E FOR CELL AVOIDANCE. THIS WAS APPROVED AND WE WERE HANDED OFF TO ZDC. WE REQUESTED LOC APCH TO HGR. WE WERE GIVEN RADAR VECTORS TO INTERCEPT THE LOC. DURING THIS TIME WE WERE ABLE TO MAINTAIN 4000' AND THE RIDE SMOOTHED OUT. WE THEN SHOT THE LOC 27 APCH TO HGR AND LANDED SAFELY. AFTER I GOT THE ACFT UNDER CONTROL AND WE HAD SWITCHED FROM DULLES APCH TO ZDC I RPTED MODERATE TO SEVERE TURB S OF THE HGR VOR. A PIREP WAS ISSUED TO FSS BY CENTER.

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.

CFI and student on an INS training flight in IFR conditions encounter unforecast severe turbulence at 5000' while climbing out of hgr.