The Aviation DataBase: Service Information: WACO Aircraft
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DataBases updated: Jul 16th, 2025
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Safety Notices
NameRevisionLangSubjectDate
1 en Excessive Use of Brakes Causes Accidents9/29/2011
en Passengers Inadvertently Blocking or Activating Flight Controls can Lead to Accidents and Death4/6/2011
en Passengers Heads can Block Forward Visibility4/6/2011
2 en Crosswinds Hazards9/30/2011
en Low Altitude Operations4/6/2011
1 en Low Altitude Operations4/22/2016
en Securing Baggage Door4/6/2011
en Smoke System Operations4/6/2011
en Hot and High Operations4/6/2011
1 en Cold Weather Operations12/2/2011
2 en Cold Weather Operations4/22/2016
en Post Crash Fires4/6/2011
1 en Post Crash Fires4/22/2016
en Poor Maintenance4/6/2011
en Night Flight and/or Bad Weather can be Deadly4/6/2011
2 en Flight Currency and Tail (Conventional) Wheel Aircraft9/30/2011
1 en Loose Objects can be Fatal9/29/2011
en High Winds and Turbulence4/6/2011
en Flying Near Broadcast Towers4/6/2011
en Aerial Survey and Photo Flights - Very High R4/6/2011
en Unusual Vibration can Indicate Propeller / Engine Problem4/6/2011
2 en Do Not Attach Items to Aircraft / Airframe9/30/2011
en Inadvertent Actuation of Mixture Control in Flight4/6/2011
1 en Inadvertent Actuation of Mixture Control in Flight9/29/2011
1 en Fuel Exhaustion Can Be Fatal4/11/2011
en Power Lines are Deadly4/6/2011
en Never Exit Aircraft with Engine Running4/6/2011
en Flying Low Over Water is Very Hazardous4/6/2011
en Be Aware During Demo or Training Flights4/6/2011
en Walking Into Propeller Can Be Fatal4/6/2011
en Carburetor Ice4/6/2011
en Dangerous Aerobatics4/6/2011
en Hydraulic Lock4/6/2011
en Inadvertent Loss of Items4/6/2011
en Activation of Parking Brake in Flight is Dangerous4/6/2011
en Proper Tire Pressure Critical4/6/2011
en Proper Attachment of Engine Cowling is Critical to Safe Flight5/19/2011
en Proper Use of Nyloc Style Nuts8/3/2011
2 en Exercising your Airplane12/2/2011
en Fuel Cap Safety9/20/2012
en Obstructed Pitot and Static Systems5/11/2012
en Proper Grounding of Aircraft During Refueling Operations8/2/2012
1 en Brake System Check5/16/2014
en Brake and Pedal Brief for Passengers5/14/2014
en Flying Wire Inspection10/23/2014
en Alternator Failure as a Result of Excessive Water Ingestion9/1/2015
en Communication and Navigation Radio Interference from Mobile Phone and Other Electrical Charging Devices9/1/2015
en Hydraulic Landing Gear Safety12/18/2017
en Use Extra Caution During Post Maintenance Flights6/19/2018
en Approved Aerobatics11/7/2018
en A Hazard in Aerobatics Effects of G-Forces on Pilots11/12/2018
2 en Safety Notice Compilation for WACO YMF-5 or 2T-1A-2 Series Aircraft4/22/2016
4 en Safety Notice Compilation for WACO YMF-5 or 2T-1A-2 Series Aircraft12/20/2017
7 en Safety Notice Compilation for WACO YMF-5 or 2T-1A-2 Series Aircraft11/12/2018
8 en Safety Notice Compilation for WACO YMF-5 or 2T-1A-2 Series Aircraft9/25/2019
Service Alerts
NameRevisionLangSubjectDate
en Cockpit Ventilation9/25/1989
en Corrosion of Stainless Steel Flying Wires11/5/1990
en Inspection of Stabilizer Front Spar12/18/1991
en Equalize Fit of Lower Cowl5/21/1991
en Corrosion of Stainless Steel Flying Wires2/27/1992
en Compliance with Proper Documentation of Engine Manufacturing Inspection Requirements12/5/1995
en Propeller Mounting Bolt Torque Requirements4/17/1996
en Cabane Streamline Wire Failure6/3/1996
en Overheating of Exhaust Piper within the Heat Exchangers5/17/1996
Service Bulletins
NameRevisionLangSubjectDate
en Battery Shift During Excess "G" Forces10/7/1976
en Tail Wire Rigging7/20/1977
A en Tail Wire Rigging6/16/1978
en Propeller AD 77-12-68/10/1977
en Product Improvement5/30/1978
en Loosening of Exhaust and Fuel Injector Attachment Nuts7/26/1978
en Left Hand Exhaust Manifold Heat Exchanger Section11/17/1978
en Inspection Requirement2/21/1980
en Mandatory Elevator Cable Wear Due to Cables Becoming Slack7/21/2010
en Redesigned Oil Cooler System Installation9/1/1980
en Inspection of the Outer Main Wheel Bearing Hub and Replacement of Seal Assemblies3/24/1981
en Inspection of Air Intake Duct (Hose)12/31/1981
en Engine Mount Inspection5/1/2000
en Horizontal Stabilizer Spar Inspection5/1/2000
en Center Section Former Rib Cracks7/6/2023
en Mandatory Horizontal Stabilizer Spar Inspection1/25/2012
Service Information Letters
NameRevisionLangSubjectDate
en Vertical Stabilizer Fin Forward Attachment Bracket Inspection2/27/2021
en Interchangeability of Certain Jacobs Engine Models1/18/2021
Service Instructions
NameRevisionLangSubjectDate
en Battery Acid Spillage7/7/1976
D en Instructions for Installing Domed or Bubble Door Windows (OPENING style) in Cessna Airplanes9/1/2006
Service Letters
NameRevisionLangSubjectDate
en Elevator Control Cable Inspection6/19/2002
en Fin Brace Wires7/20/1977
en Product Improvement6/21/1978
en Externally Mounted I.D. Plates11/16/1987
en Retrofit of Throttle and Mixture Controls5/2/1988
en Retrofit of Oil Scavenge Line and Safety Pinning of Exhaust System7/5/1988
en Safety Wire Installation on Oil Valve10/3/1988
en Fuel Line Chafe Protection6/29/1989
en Alternate Brake Master Cylinder Installation11/12/1991
en Stabilizer Spar Inspection and Reinforcement
en Cabin Airbox Inspection and Modification3/16/1992
en Overheating of Exhaust Pipes within the Heat Exchangers5/17/1996
en Fuel Injection - Not Recommended5/27/2016
Miscellaneous
NameRevisionLangSubjectDate
en YMF-D
A en YMF Waco F5 & YMF Waco F5C7/5/2005
en Landing Gear Piston Upgrade Kit
en Maintenance and Rigging Manual: 2T-1A