An spn came close to a military formation flight in the isabella MOA.

Attributes
ACN	285107
Time
Date	199409
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : l71
State Reference	CA
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : edw
Operator	general aviation : instructional
Make Model Name	Sail Plane
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	None
Aircraft 2
Operator	other
Make Model Name	B2 Spirit/Bomber
Operating Under FAR Part	other : other
Navigation In Use	Other Other
Flight Phase	cruise other
Person 1
Affiliation	Other
Function	flight crew : single pilot instruction : instructor
Qualification	pilot : commercial pilot : cfi
Experience	flight time last 90 days : 175 flight time total : 900 flight time type : 400
ASRS Report	285107
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : student
Events
Anomaly	conflict : airborne less severe other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 1000 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Glider flight training VFR in isabella MOA. 'Glider' checked in with position/altitude report to ATC (joshua approach), no transponder, monitoring frequency 133.65. Controller #1 acknowledges has conversation with glider. 'G' and C1 both understand VFR with no flight following. G works within 1/2 mi of reported operations. C1 changes work station, 'G' notices controller #2 voice. C 2 is busy working military and VFR civil flight following traffic. G does not re-establish position report with C2, due to perceived workload. G flies straight and level, south heading, G cockpit fills with jet engine noise by overtaking aircraft. Student in front seat finds traffic first, B-2 and F-16 chase are at level or slightly lower position, in 45-60 degree right bank turn within 1000 ft lateral. Glider banks left, moves east and reports near miss to joshua. C2 asks glider position/altitude, asks 'G' current B-2 position/altitude. C2 responds, thought glider at mojave airport and B-2 under control of sport radar (132.75?). G asks C2 if sport often works aircraft outside of R-2515, gets answer as affirmative. This situation could be repeated with any category civil registry aircraft. This situation could be repeated with any category civil registry aircraft. 2 agencies are sharing responsibility for overlapping airspace. These 2 aircraft got close because each ATC 'worked' overlapping flight paths. 1) B-2 on sport control in civil/military joint use airspace. G required to be on joshua frequency, if on any radio at all. 2) G in flight made which presents small visual cross section. 3) B-2 and F-16 took no ground observable action to take wider path -- flight test environment leaves small percent pilot attention for VFR. 4) G did not reaffirm position when C1 switched to C2. Perhaps C2 did not feel big responsibility to non-mode C glider and sports B-2. Cures: 1) no overlap of ATC responsibilities. 1 guy owns the space. 2) glider CFI attends/presents civil side of picture to military pilots on VFR operations. 3) ATC could make broad band (UHF, VHF, military discreet) advisories if gliders check-in as VFR traffic with no mode C.

Original NASA ASRS Text

Title: AN SPN CAME CLOSE TO A MIL FORMATION FLT IN THE ISABELLA MOA.

Narrative: GLIDER FLT TRAINING VFR IN ISABELLA MOA. 'GLIDER' CHKED IN WITH POS/ALT RPT TO ATC (JOSHUA APCH), NO XPONDER, MONITORING FREQ 133.65. CTLR #1 ACKNOWLEDGES HAS CONVERSATION WITH GLIDER. 'G' AND C1 BOTH UNDERSTAND VFR WITH NO FLT FOLLOWING. G WORKS WITHIN 1/2 MI OF RPTED OPS. C1 CHANGES WORK STATION, 'G' NOTICES CTLR #2 VOICE. C 2 IS BUSY WORKING MIL AND VFR CIVIL FLT FOLLOWING TFC. G DOES NOT RE-ESTABLISH POS RPT WITH C2, DUE TO PERCEIVED WORKLOAD. G FLIES STRAIGHT AND LEVEL, S HDG, G COCKPIT FILLS WITH JET ENG NOISE BY OVERTAKING ACFT. STUDENT IN FRONT SEAT FINDS TFC FIRST, B-2 AND F-16 CHASE ARE AT LEVEL OR SLIGHTLY LOWER POS, IN 45-60 DEG R BANK TURN WITHIN 1000 FT LATERAL. GLIDER BANKS L, MOVES E AND RPTS NEAR MISS TO JOSHUA. C2 ASKS GLIDER POS/ALT, ASKS 'G' CURRENT B-2 POS/ALT. C2 RESPONDS, THOUGHT GLIDER AT MOJAVE ARPT AND B-2 UNDER CTL OF SPORT RADAR (132.75?). G ASKS C2 IF SPORT OFTEN WORKS ACFT OUTSIDE OF R-2515, GETS ANSWER AS AFFIRMATIVE. THIS SIT COULD BE REPEATED WITH ANY CATEGORY CIVIL REGISTRY ACFT. THIS SIT COULD BE REPEATED WITH ANY CATEGORY CIVIL REGISTRY ACFT. 2 AGENCIES ARE SHARING RESPONSIBILITY FOR OVERLAPPING AIRSPACE. THESE 2 ACFT GOT CLOSE BECAUSE EACH ATC 'WORKED' OVERLAPPING FLT PATHS. 1) B-2 ON SPORT CTL IN CIVIL/MIL JOINT USE AIRSPACE. G REQUIRED TO BE ON JOSHUA FREQ, IF ON ANY RADIO AT ALL. 2) G IN FLT MADE WHICH PRESENTS SMALL VISUAL CROSS SECTION. 3) B-2 AND F-16 TOOK NO GND OBSERVABLE ACTION TO TAKE WIDER PATH -- FLT TEST ENVIRONMENT LEAVES SMALL PERCENT PLT ATTN FOR VFR. 4) G DID NOT REAFFIRM POS WHEN C1 SWITCHED TO C2. PERHAPS C2 DID NOT FEEL BIG RESPONSIBILITY TO NON-MODE C GLIDER AND SPORTS B-2. CURES: 1) NO OVERLAP OF ATC RESPONSIBILITIES. 1 GUY OWNS THE SPACE. 2) GLIDER CFI ATTENDS/PRESENTS CIVIL SIDE OF PICTURE TO MIL PLTS ON VFR OPS. 3) ATC COULD MAKE BROAD BAND (UHF, VHF, MIL DISCREET) ADVISORIES IF GLIDERS CHK-IN AS VFR TFC WITH NO MODE C.

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.