PIC of MTR inverted in spin had 4 requests from center for altitude confirmation during the descent ...

Attributes
ACN	128591
Time
Date	198911
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : nqi
State Reference	TX
Altitude	msl bound lower : 12800 msl bound upper : 24000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zhu
Operator	other
Make Model Name	Military Trainer
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	government : military
Function	instruction : instructor oversight : pic
Qualification	pilot : military
Experience	flight time last 90 days : 450 flight time total : 4200 flight time type : 1130
ASRS Report	128591
Person 2
Affiliation	government : military
Function	instruction : trainee
Qualification	pilot : military
Events
Anomaly	other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Cleared to operate in the NAS kings spin ii MOA from altitude (including) 26,000' MSL-13,000' MSL. Filed and cleared as (spin 352). Upon recovery phase of an out-of-control maneuver student was flying aircraft. He ran pitch trim full nose down during a violent phase of post stall gyration at approximately 19,000' MSL. As ip took control and aircraft tucked inverted houston center began demanding altitude verifications. With the aircraft accelerating straight down with 2-3 'G's' on the aircraft the instructor pilot broadcast a terse 'stand by!', in response to the controller's 3RD 'say altitude' request. Aircraft was passing through about 15,000' at the time. Ip finally recovered the aircraft and bottomed out on the pull up at 13,000, 12,800' MSL. It was difficult to tell with high 'G' and 280 KIAS. To the 4TH altitude query, the ip responded with '13,000', climbing'. No explanation or further requests were made by ZHU. 1) xmissions were made to the ip at a critical phase of flight in a stressful environment while the ip was attempting to instruct. 2) the ip showed himself well within the confines of the spin area. 3) no reason for the altitude readout requests was provided.

Original NASA ASRS Text

Title: PIC OF MTR INVERTED IN SPIN HAD 4 REQUESTS FROM CENTER FOR ALT CONFIRMATION DURING THE DESCENT AND RECOVERY FROM THE INADVERTENT OUT OF CONTROL SITUATION.

Narrative: CLRED TO OPERATE IN THE NAS KINGS SPIN II MOA FROM ALT (INCLUDING) 26,000' MSL-13,000' MSL. FILED AND CLRED AS (SPIN 352). UPON RECOVERY PHASE OF AN OUT-OF-CONTROL MANEUVER STUDENT WAS FLYING ACFT. HE RAN PITCH TRIM FULL NOSE DOWN DURING A VIOLENT PHASE OF POST STALL GYRATION AT APPROX 19,000' MSL. AS IP TOOK CONTROL AND ACFT TUCKED INVERTED HOUSTON CENTER BEGAN DEMANDING ALT VERIFICATIONS. WITH THE ACFT ACCELERATING STRAIGHT DOWN WITH 2-3 'G'S' ON THE ACFT THE INSTRUCTOR PLT BROADCAST A TERSE 'STAND BY!', IN RESPONSE TO THE CTLR'S 3RD 'SAY ALT' REQUEST. ACFT WAS PASSING THROUGH ABOUT 15,000' AT THE TIME. IP FINALLY RECOVERED THE ACFT AND BOTTOMED OUT ON THE PULL UP AT 13,000, 12,800' MSL. IT WAS DIFFICULT TO TELL WITH HIGH 'G' AND 280 KIAS. TO THE 4TH ALT QUERY, THE IP RESPONDED WITH '13,000', CLIMBING'. NO EXPLANATION OR FURTHER REQUESTS WERE MADE BY ZHU. 1) XMISSIONS WERE MADE TO THE IP AT A CRITICAL PHASE OF FLT IN A STRESSFUL ENVIRONMENT WHILE THE IP WAS ATTEMPTING TO INSTRUCT. 2) THE IP SHOWED HIMSELF WELL WITHIN THE CONFINES OF THE SPIN AREA. 3) NO REASON FOR THE ALT READOUT REQUESTS WAS PROVIDED.

Data retrieved from NASA's ASRS site as of August 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.

PIC of MTR inverted in spin had 4 requests from center for altitude confirmation during the descent and recovery from the inadvertent out of control situation.