Flight Crew Private
Flight Crew Last 90 Days 13; Flight Crew Total 401; Flight Crew Type 401
Workload; Troubleshooting; Situational Awareness; Communication Breakdown; Distraction
Aircraft Equipment Problem Critical; Airspace Violation All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural FAR
Flight Crew Overcame Equipment Problem; General Maintenance Action; General Flight Cancelled / Delayed
Aircraft; Human Factors
After departing ZZZ1 for ZZZ2; my alternator failed; so I turned off non-essential electrical items and tried to fly as directly as possible to ZZZ2 to conserve battery power so I could contact ATC at ZZZ2. In attempting to fly a direct course; I may have penetrated the southwest corner of ZZZ Class D without establishing contact with the Control Tower. This Class D has a keyhole shape; and I may have penetrated the very corner. If I was in Delta; it would have only been about one minute as I turned left to ensure I did not remain in Delta. Dealing with the electrical problems kept me from giving a wider berth to Class Delta.
PA-28 Pilot reported loss of alternator during flight and entered Class D airspace without two-way communications.