C172 instructor and trainee were concerned about violating class D airspace.

Attributes
ACN	418445
Time
Date	199811
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : crq airport : crq
State Reference	CA
Altitude	msl bound lower : 3000 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : san
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Flight Phase	climbout : intermediate altitude cruise other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : atp pilot : cfi pilot : instrument
Experience	flight time last 90 days : 60 flight time total : 5000 flight time type : 1200
ASRS Report	418445
Person 2
Affiliation	company : air carrier
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : private
Experience	flight time last 90 days : 16 flight time total : 155 flight time type : 85
ASRS Report	418680
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

While executing missed approach at L32 (oceanside airport), canceled IFR flight plan due to problems with instruments, turn and bank, artificial horizon, compass, on climb to 3000 ft. However, did not confirm altitude as my student and I were trying to determine what was wrong. Flew a heading to take us off the coast and then toward nzy, our destination. We then descended to 1200 ft MSL to avoid flying through the class B airspace for san while proceeding to NAS north island (nzy) for landing.

Original NASA ASRS Text

Title: C172 INSTRUCTOR AND TRAINEE WERE CONCERNED ABOUT VIOLATING CLASS D AIRSPACE.

Narrative: WHILE EXECUTING MISSED APCH AT L32 (OCEANSIDE ARPT), CANCELED IFR FLT PLAN DUE TO PROBS WITH INSTS, TURN AND BANK, ARTIFICIAL HORIZON, COMPASS, ON CLB TO 3000 FT. HOWEVER, DID NOT CONFIRM ALT AS MY STUDENT AND I WERE TRYING TO DETERMINE WHAT WAS WRONG. FLEW A HDG TO TAKE US OFF THE COAST AND THEN TOWARD NZY, OUR DEST. WE THEN DSNDED TO 1200 FT MSL TO AVOID FLYING THROUGH THE CLASS B AIRSPACE FOR SAN WHILE PROCEEDING TO NAS NORTH ISLAND (NZY) FOR LNDG.

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.