1975 GRUMMAN/AMERICAN GENERAL AA1B

General Specs (cont.)

Total Time:2558

Engine 1 Time:1695 SMOH

Useful Load:527 lb

Condition:Used

Flight Rules:VFR

# of Seats:2

Additional Classifications

Detailed Description

AUCTION - This 1975 Grumman AA-1B is a light, economical two-seat flyer with a March 2026 annual and several recent upgrades. Highlights include a Plane-Power alternator, newer AWI exhaust, recent attitude indicator and directional gyro, newer tires, and 78/80 compression on all four cylinders at the last annual. An Auto Fuel STC and a package of Garmin, King and uAvionix avionics included with the sale add flexibility and upgrade potential.

This aircraft starts an online auction on September 23, 2026. View full logbooks and register to bid, https://bids.airspaceauctions.com/Listing/979691

Avionics / Equipment

Avionics:
Garmin GTX 327 transponder - not installed; included with sale
King KX 155 TSO NAV/COM - not installed; included with sale
PS Engineering PM 1000 II intercom - not installed. included with sale
uAvionix ADS-B tailBeacon - not installed; included with sale
VOR/LOC receiver - not installed; included with sale
Slip/skid indicator - not installed; included with sale
Altimeter - not installed; included with sale
Yaesu Pro-X handheld communications radio
Traditional analog flight and engine instrumentation.

ADS-B: No installed ADS-B equipment documented. uAvionix tailBeacon is included with the sale but is not installed.
Flight Rules: VFR
IFR Capable / Certified: No

Additional Features / Maintenance:
Electrical: Plane-Power alternator (2026), voltage regulator (2023), landing light/lens (2026), new spark plugs (2026).
Systems & Maintenance: Attitude indicator/directional gyro (2026), AWI exhaust/McFarlane mixture control (2024), newer tires (<75 landings), ELT battery replaced (due 2028), left wing sump/brake master line serviced (2026).
Other: Reported Auto Gas STC.
Incident Date(s): 1981 - Seller reports a prop strike. Original logbooks covering this period are lost/destroyed; repair details and supporting documentation have not been verified.
Gaps / Missing Logbooks: Logbooks from 1975-1987 are lost or destroyed.
Replacement logbooks begin January 14, 1988, with prior-owner history reconstructed where possible.
Known Flaws:main avionics stack partially empty; avionics listed above are photographed separately and included in sale.
Known Corrosion: no corrosion known

Airframe

Aircraft Specs:
Aircraft Make: Grumman American Aviation Corp.
Aircraft Model: AA-1B
Aircraft SN: AA1B-0525
Registration: N1425R
Aircraft Total Time: 2,558.1 hours
Tach Time: 2,327.8
Hobbs Time: 1,262.1
Date of Annual: March 24, 2026.
Certifi cation / Category: Standard / Utility.

Engines / Mods / Prop

Engine:
Engine Make: Lycoming
Engine Model: O-235-C2C
Engine SN: L-12036-15
Engine Total Time: 2,558.1 hours TTE as of March 24, 2026.
Engine Time: 1,695.1 hours SMOH / 629.9 hours STOH
Horsepower: 108 hp at 2,600 RPM.

Top Overhaul: April 21, 2023. All cylinders were removed for oil consumption; cylinders were exchanged for an overhauled chrome-bore standard-size set, with new rings, gaskets, seals and associated top-end parts. Cylinders were sent to Sal's Cylinders.
Compression: 78/80 recorded at the 3/24/2026 inspection

Prop:
Prop Type: Two-blade fi xed-pitch propeller visible in current aircraft photos.
Prop Make / Model / SN: INFO?
Prop Time / Overhaul: INFO?

Interior / Exterior

Interior: 6/10
Burgundy/red cloth seating with matching reddish-burgundy carpet/side areas and a black instrument panel.

Exterior: 6/10
Cream/off-white exterior with brown, orange and red accent striping and matching tail stripes.

Remarks

Highlights:
Annual inspection completed March 24, 2026.
Lycoming O-235-C2C with 629.9 hours since a documented April 2023 top overhaul.
Plane-Power alternator installed in 2026; AWI exhaust system and McFarlane mixture control installed in 2024.
Garmin GTX 327, King KX 155, PS Engineering PM 1000 II and uAvionix ADS-B equipment are photographed separately and reported included with the sale.

Performance Specs:
Gross Weight: 1,560 lb
Useful Load: 527lb
Cruise Speed: Approx. 90-100 knots
Range: 450 statute miles at 75% power, 22 gallons/no reserve
Fuel Capacity: 24 gal total / 22 gal usable.
Fuel Burn: Approx. 6.5 GPH
Stall Speed: Approx. 62 mph CAS

Information for Auction:
Auction Dates: September 23, 2026 - September 30, 2026 - 2pm
Starting Bid: $15,000
Buyer Premium: 6%
Deposit Required: $2,000
Auction: https://bids.airspaceauctions.com/Listing/979691