# Aerofab LA-4 - Type: Aircraft model (FAA registry) - Registry code: 5110312 - Manufacturer (registry): AEROFAB - Model: LA-4 - Aircraft type: Fixed wing single engine - Category: Airplane - Engines: 1 · Reciprocating - Seats: 4 - Weight class: Up to 12,499 lb - Cruise speed: 91 mph - Certification: Type certificated - Registered aircraft: 2 - Page: https://openairdocs.org/model/aerofab-la-4 Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft (2) - [N1170L](https://openairdocs.org/aircraft/N1170L): [Sweet Aviation LLC](https://openairdocs.org/faa-owner/SWEET%20AVIATION%20LLC), [Dover, DE](https://openairdocs.org/faa-place/DE/Dover), S/N 332 - [N2001L](https://openairdocs.org/aircraft/N2001L): [Seventh LLC](https://openairdocs.org/faa-owner/SEVENTH%20LLC), [Summerfield, FL](https://openairdocs.org/faa-place/FL/Summerfield), built 1966, S/N 334 ## NTSB investigations (4) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB CEN23LA287](https://openairdocs.org/ntsb/CEN23LA287), Jul 8, 2023: Aerofab LA-4 (N993PT), Big Prairie, MI, substantial damage. Probable cause: The airplane’s collision with a submerged log during a water landing. - [NTSB NYC70A0015](https://openairdocs.org/ntsb/NYC70A0015), Jul 27, 1969: Lake LA-4 (N2034L), North Creek, NY, destroyed, 1 fatal - [NTSB CHI68F0241](https://openairdocs.org/ntsb/CHI68F0241), Jul 5, 1967: Lake LA-4 (N2001L), Union, MI, substantial damage - [NTSB OAK67D0049](https://openairdocs.org/ntsb/OAK67D0049), Jul 31, 1966: Lake LA-4A (N1169L), Winters, CA, substantial damage ## FAA accident and incident reports (1) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20230708008699A](https://openairdocs.org/incident/20230708008699A), Jul 8, 2023: Aerofab LA-4 (N993PT), White Cloud, MI, Substantial damage. On July 8, 2023 at 0940 local time, a 1966 Aerofab (lake) LA-4 amphibian aircraft, [privacy data omitted], registered to and operated by a private pilot… ## Service difficulty reports (11) As reported by operators and repair stations, by the model named in the report. - [SDR CA050121005](https://openairdocs.org/sdr/CA050121005), Nov 25, 2004: FITTING. CRACKED. (CAN) DURING ANNUAL INSP, IT WAS NOTICED THAT AC DID NOT COMPLY WITH REQUIREMENTS OF AD98-10-12 WITH REF TO SB78 HORIZONTAL STABILIZER INSP AND REWORK. AD98-10- - [SDR 2003FA0001212](https://openairdocs.org/sdr/2003FA0001212), Jul 17, 2002: CONTROL HANDLE. BROKEN. PILOT REPORTED THAT ON APPROACH TO LANDING THAT HE ADVANCED PROP TO FULL RPM AND THE PROP CONTROL LEVER BROKE OFF IN HIS HAND, INSTALLED A NEW PROP CONTROL LEVE - [SDR 20000508SH003](https://openairdocs.org/sdr/20000508SH003), Apr 14, 2000: MOUNT. CRACKED. RIGHT LOWER ENGINE ATTACH POINT CRACKED TO RIGHT STRUT ATTACH POINT. (RADIALLY THROUGH MOUNT TUBE). DETECTED DURING ANNUAL INSPECTION VISUALLY AND VERIFIED BY D - [SDR 97ZZZX4628](https://openairdocs.org/sdr/97ZZZX4628), Oct 18, 1997: GEAR. WORN. PILOT REPORTED ENGINE RUNNING ROUGH. PERFORMED TROUBLESHOOTING, FOUND RT MAGNETO ROTOR SHAFT AND ROTOR GEAR WORN BEYOND LIMITS. GEAR WAS FOUND LOOSE ON SHAFT. T - [SDR 97ZZZX4627](https://openairdocs.org/sdr/97ZZZX4627), Oct 18, 1997: SHAFT. WORN. PILOT REPORTED ENGINE RUNNING ROUGH. PERFORMED TROUBLESHOOTING, FOUND RT MAGNETO ROTOR SHAFT AND ROTOR GEAR WORN BEYOND LIMITS. GEAR WAS FOUND LOOSE ON SHAFT. T - [SDR CA970612004](https://openairdocs.org/sdr/CA970612004), Jun 4, 1997: BLADE BEARING. CORRODED. (CAN) PROPELLER RECEIVED FOR CORROSION INSPECTIOIN. BLADE BEARINGS, BALLS, BLADE CLAMPS AND CYLINDER WERE FOUND CORRODED. PARTS WERE REPLACED. - [SDR CA970407007](https://openairdocs.org/sdr/CA970407007), Mar 26, 1997: FORK. WORN OUT. (CAN) INSPECTION FOUND PROPELLER FORK WORN. - [SDR CA970407006](https://openairdocs.org/sdr/CA970407006), Mar 26, 1997: BLADE. ERODED. (CAN) PROPELLER RECEIVED FOR CORROSION INSPECTION. BLADE LEADING EDGE ERODED/CORRODED. FILING AND DRESSING OUT REQUIRED. - [SDR 97ZZZX1870](https://openairdocs.org/sdr/97ZZZX1870), Mar 1, 1997: MOUNT. CRACKED. ENGINE MOUNT CRACKS WERE DISCOVERED DURING REMOVAL OF BRACKETT AIR FILTER COWLING. CRACKED SUPPORT IS APPROXIMATELY 4 INCHES LONG, 2 INCHES HIGH, .1250 INCH THI - [SDR CA961018008](https://openairdocs.org/sdr/CA961018008), Oct 18, 1996: SKIN. CORRODED. (CAN) INTERIOR OF FUSELAGE SKIN AND BULKHEADS FOUND CORRODED WHERE GLUE IS USED TO SECURE INSULATION TO COMPONENTS INSIDE THE CABIN. - [SDR EY2R9601065](https://openairdocs.org/sdr/EY2R9601065), Sep 1, 1996: BEARING. CORRODED. BEARING CORRODED. ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Lake LA-4](https://openairdocs.org/model/lake-la-4): 45 registered aircraft, registry code 5110302 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.