RV12 N7944A  Vans Service Bulletins     Vans Service Bulletins
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RV12 N7944A ALL Bulletin Log
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Note: this aircraft is built EAB and has a Jabiru 3000 120hp Power Plant.
 The bulletins that are for the Rotax engine do not apply.
The Jabiru notices will be listed in the Engine log
.
Builder Note: All service bulletins have been inspected as the aircraft was built and will be checked as required.
SB-00053
Tailcone Skin Clips
OPEN
Date
Date  
Required Action: Inspect lower tailcone skin for cracks and install new tailcone stiffener clips Time of Compliance: Within 100 hours or at the next 12-month inspection, whichever occurs first
SB_16-05-23B
Nose Fork
OPEN
Date
Date  
Inspect before further flight, then at 25-hour intervals, and replace at the next annual or 100-hour inspection
SB 19-08-26
Nose gear replacement
OPEN
Date
Date  
Required Action: Replace WD-1201 with WD-1201-1-RTR Nose Gear Time of Compliance: At or before the next annual condition inspection

An RV-12 training aircraft with more than 1700 hours of accumulated flight time recently experienced a nose gear fatigue failure. This is the only reported instance; no other fatigue-related nose gear failures have been reported.
SB 19-07-29 NA Rotax SB-912-073 UL
SB 18-07-05B NA Sensenich Propeller
SB 19-03-22 NA Rotax Cylinder #2 Exhaust
SB 18-03-06 NA Rotax Replace throttle spring
SB 18-02-03
Anti - Servo Tab Cracks

Start on..... 00/00/00

Finished..00/00/00

OPEN
Date
Date  
Required Action: Inspect for cracks in the area around the aft rivet in both side flanges of the F-1206F Bearing Bracket Brace. See Figure 1. The presence of cracks requires the modifications described in this document. If no cracks are present, make a log book entry indicating compliance with this service bulletin and date of next inspection
SB 18-02-02
Horizontal Stabilator Front Spar

Start on... 05/04/18

Finished..05/09/18

Completed   
SB 17-10-14 NA Rotax SB - Inspection and/or replacement of the valve push-rod assy

SB 16-08-24 Loose Engine Brackets

This was redesigned with the jabiru engine install. Finished 03/22/14

NA

SB 16 08-01

Stabilator Bearing Inspection

Start on..... 00/00/00

Finished..03/22/14

Completed Remove the stabilator bearings.

Being careful not to get any Loctite inside the seals on the bearing, apply Loctite 648 per the instructions on the Loctite package and in accordance with the Maintenance Manual Chapter 5 Stabilator Hinge Replacement procedure.
SB 16-05-26 NA Affected Models: All RV-12 ELSA and SLSA aircraft.-Data Plate Modification
SB-16-05-23
Nose Fork Inspection
OPEN
Date
Date  
A damaged nose fork was returned to Van's Aircraft for review. Upon inspection, the nose fork was discovered to have had a manufacturing defect. Parts at Van's Aircraft were also inspected and some were found to have a similar defect  ( will check on preflight )
SB16-04-10 NA Switch Harness Update.      Builder Note: Not Used 
SB 15-03-05 NA Rotax Carb Float
SB 14-12-16 NA Rotax Throttle Spring
SB 14-12-06
F-1206F Bearing Cracks
OPEN
Date
Date  
Inspect for cracks in the area around the aft rivet in both side flanges of the F-1206F Bearing Bracket Brace. See Figure 1. The presence of cracks requires the modifications described in this document. If no cracks are present, make a log book entry indicating compliance with this service bulletin and date of next inspection (if applicable).
SB 14-11-03
Wing Spar Fix

Completed at the time of the wing build
   
SB 14-10-14 NA Rotax Carb Float
SB 14-09-10 NA Throttle Return Springs
SB 14-07-23 NA Throttle Return Springs
SB 14-01-17
Rudder Cables
02/04/14 Inspect Brake lines for correct routing. This was checked on 02/04/14  
SB 13-12-19 NA Fuel Tank Modification
SB 13-12-12
Sealing Avionics Bay
Open
Date
Date  
Avoid flight in precipitation prior to complying with this bulletin.  Without seal, water may infiltrate structure between mating surfaces of F-1240 Upper Forward Fuselage Skin and F-1201H Upper Fwd. Fuss
SB 13-08-29 NA Throttle Retaining Nut
SB 13-04-05 NA Oil Tank Brackets
SB 13-03-21 NA Rotax Ethanol in Fuel
SB 13-02-06 NA Rotax Chafing Coolant Hoses
SB 12-11-09

Center Section Modification
This Service Bulletin was completed at the time of construction

Builder Note:
Additional reinforcement was added buy the builder.

See Alteration: 06
SB 12-09-26
See SB 12-11-09
NA Superseded by SB-12-11-09 and addendum - Please refer to that set of documents
SB 12-08-09 NA Cracks in Nose Wheel Fairing Brackets
SB 12-01-30 NA Install new PLA-00017 Placard
SB 11-12-14 NA Fuel Tank Upgrade Builder Note See
SB 11-09-13 NA Fuel Tank Slosh Inspection
SB 10-12-14
Possible cracks on WD-1230
Superseded
SB-16-05-23
A damaged nose fork was returned to Van's Aircraft for review. Upon inspection, the nose fork was discovered to have had a manufacturing defect. Parts at Van's Aircraft were also inspected and Some were found to have a similar defect
SB 10-04-28
Possible cracks on Stiffener Beads
NA Kit Arrives 04/28/14
Start Right Wing 02/05/15 - Ribs Checked at time of install

SB 10-03-17 NA Rotax Radiator Interference
SB 04-02-01 NA Inspect Fuel Tanks - Builder Note: Vans tanknot used.
     
RV-12 Safety Directives and Alerts
SD-00017 NA MARCH 2, 2021 - Required Action: Verify that fuel return line is not blocked.
SD-00001 Open
Date
Date  
Inspect the trim motor shaft for straightness before further flight. Replace if bent or if trim unit time in service exceeds 1000 flight hours.
SA 03-17-11 Checked Inspect WD-1215-L-PC and WD-1215-R-PC Flaperon Torque Arms for complete welds
CENTER SECTION MID FUSE LOWER FUSE  SIDE SKINS ROLLOVER TAIL ATTCH  SEATS PEDALS FUEL FWD FUSE  BUILDERS LOG