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AIRWORTHINESS LIMITATIONS

1. Airworthiness Limitations Section A. Introduction The Airworthiness Limitations Section is Federal Aviation Administration approved and specifies maintenance required under Sections 43.16 and 91.403 of the Federal Aviation Regulations, unless an alternative program has been FAA approved.

(1) Subsections - Details

• Section 1.B. Safe Life Limited Items

• Section 1.C. Principal Structural Element (PSE) Reporting Procedures

• Section 1.D. Principal Structural Element Inspection Requirements

• Section 1.E. Certification Maintenance Requirements (CMR)

(2) Airworthiness Limitations Each new model of Gulfstream aircraft, will have its own Airworthiness Limitations (AL). The AL speci fically addresses those items which have been identi fied through the certi fication process as being safe life (life limited) or damage tolerant and meet the de finition of a PSE.

Aircraft without a record of the number of landings may calculate by using a ratio of one (1) landing per two (2) flying hours.

NOTE: Mandatory life limitations and inspections applicable to aircraft having ASC 99 , European Aviation Safety Agency (EASA) certi fication. Where these limitations or inspection requirements are different from those limitations approved by the Federal Aviation Administration (FAA), the EASA approved data applies. Where no supplemental EASA information is provided, the FAA approved data is applicable.

(3) MRB Report MSG-3 structural inspection tasks which satisfy ALI requirements for accidental and environmental (corrosion) damage are listed in AMM Chapter 05-22-00 (Maintenance Review Board Report). The operator must consider both AMM Chapter 05-22-00 and Chapter 05-10-10 requirements when developing and maintaining a maintenance program.

B. Safe Life Limits The Safe Life Limits addresses those items that have been de fined as being life limited. The part number, quantity, item description and mandatory replacement times for these parts are included as shown in the following FAA and EASA Life Limited Components tables.

Table 1: FAA and EASA Life Limited Components Chapter 26 Fire Protection Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref 51291-195 Fire Detection Rail Assembly No. 1 - Discard 22 0 0 0 flight cycles 26-11-01 261153 261154

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Table 1: FAA and EASA Life Limited Components Chapter 26 Fire Protection Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref 51291-192 51291-197 Fire Detection Rail Assembly No. 4 - Discard NOTE: Not applicable to 51291- 197 on engines having SB-BR700-26-101448.

(Engines having SB-BR700- 26-101448, fire detection rail / loops are designated 51291-197S).

22 0 0 0 flight cycles 26-11-13 261159 261160 Table 2: FAA and EASA Life Limited Components Chapter 27 Flight Controls Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref 1159SCC474-3 Elevator Force Sensor - Discard NOTE: Aircraft having ASC 134.

21 0 0 0 flight hours 27-31-13 273517 273518 1159SCC474-7 Aileron Force Sensor - Discard NOTE: Aircraft having ASC 134.

21 0 0 0 flight hours 27-11-13 271217 271218 1159SCC474-11 Rudder Force Sensor - Discard NOTE: Aircraft having ASC 134.

11 0 0 0 flight hours 27-21-09 272421 Table 3: FAA Life Limited Components Chapter 32 Nose Landing Gear Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref 1159HM40120-1, -7 Nose Landing Gear Retract Actuator Rod End - Discard 16 4 7 0 flight cycles 32-38-03 323064 1159SCL567-3 Nose Landing Gear Retract Actuator Rod End - Discard 1 25,000 flight cycles 32-38-03 323066 1159L50004 Nose Landing Gear Assembly - Discard MRB Ref: 32-10-04-05 1 32,750 flight cycles 32-20-00 322001 1159LM50690 Nose Landing Gear Trunnion - Discard 1 22,750 flight cycles 32-24-01 322401 1159L50801 Nose Landing Gear Truss Brace Assembly - Discard 1 32,750 flight cycles 32-24-05 322409

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Table 3: FAA Life Limited Components Chapter 32 Nose Landing Gear Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref 1159LM50521 Nose Landing Gear Axle Assembly Piston - Discard 1 32,750 flight cycles 32-23-00 322311 1159LM50548 Nose Landing Gear Upper Torque Arm - Discard 1 32,750 flight cycles 32-22-03 322419 1159LM30553 Nose Landing Gear Lower Torque Arm - Discard 1 32,750 flight cycles 32-22-05 322421 1159L50500 Nose Landing Gear Shock Strut - Discard 1 20,000 flight cycles 32-22-01 322200 1159LM50700-3 Nose Landing Gear Shock Strut Cylinder Assembly - Discard NOTE: Applies to Aircraft 501 thru Aircraft 544.

1 18,400 flight cycles 32-22-01 322206 1159LM50700-5 Nose Landing Gear Shock Strut Cylinder Assembly - Discard 1 20,000 flight cycles 32-22-01 322206 1159LM50585 Nose Landing Gear Drag Brace - Discard 1 32,750 flight cycles 32-24-03 322403 1159LM40565 Nose Landing Gear Truss Brace Pin - Discard 4 20,000 flight cycles 32-24-05 322434 322435 322436 322437 1159LM50611 Nose Landing Gear Trunnion Pin - Discard NOTE: Left trunnion pin.

1 32,750 flight cycles 32-25-01 322405 1159LM50613 Nose Landing Gear Trunnion Pin - Discard NOTE: Right trunnion pin.

1 32,750 flight cycles 32-25-01 322407 1159LM40588-19 Nose Landing Gear Upper Drag Brace Pin - Discard 15 0 0 0 flight cycles 32-24-03 322411 1159LM50587 Nose Landing Gear Lower Drag Brace Pin - Discard 1 20,000 flight cycles 32-24-03 322413 1159LM40583 Nose Landing Gear Actuator Attach Pins - Discard 1 32,750 flight cycles 32-38-03 322415 1159LM50568 Nose Landing Gear Strut / Trunnion Pin - Discard 1 20,000 flight cycles 32-25-01 322417 1159SCL500-23 Nose Wheel Steering Collar Assembly

- Discard 1 20,000 flight cycles 32-52-03 325205

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Table 4: EASA Life Limited Components Chapter 32 Nose Landing Gear Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref 1159HM40120-1 1159HM40120-7 Nose Landing Gear Retract Actuator Rod End - Discard 15 1 7 0 flight cycles 32-38-03 323064 1159SCL567-3 Nose Landing Gear Retract Actuator Rod End - Discard 1 20,000 flight cycles 32-38-03 323066 1159L50004 Nose Landing Gear Assembly - Discard 1 26,200 flight cycles 32-20-00 322001 1159LM50690 Nose Landing Gear Trunnion - Discard 1 18,200 flight cycles 32-24-01 322401 1159L50801 Nose Landing Gear Truss Brace Assembly - Discard 1 26,200 flight cycles 32-24-05 322409 1159LM40565 Nose Landing Gear Truss Brace Pin - Discard 4 16,000 flight cycles 32-24-05 322434 322435 322436 322437 1159LM50548 Nose Landing Gear Upper Torque Arm - Discard 1 26,200 flight cycles 32-22-03 322419 1159LM30553 Nose Landing Gear Lower Torque Arm - Discard 1 26,200 flight cycles 32-22-05 322421 1159L50500 Nose Landing Gear Shock Strut - Discard 1 16,000 flight cycles 32-22-01 322200 1159LM50700-3 Nose Landing Gear Shock Strut Cylinder Assembly - Discard NOTE: Applies to Aircraft 501 thru Aircraft 544.

1 10,200 flight cycles 32-22-01 322206 1159LM50700-5 Nose Landing Gear Shock Strut Cylinder Assembly - Discard 1 16,000 flight cycles 32-22-01 322206 1159LM50521 Nose Landing Gear Axle Assembly Piston - Discard 1 26,200 flight cycles 32-23-00 322311 1159LM50585 Nose Landing Gear Drag Brace - Discard 1 26,200 flight cycles 32-24-03 322403 1159LM50611 Nose Landing Gear Trunnion Pin - Discard NOTE: Left trunnion pin.

1 26,200 flight cycles 32-25-01 322405 1159LM50613 Nose Landing Gear Trunnion Pin - Discard NOTE: Right trunnion pin.

1 26,200 flight cycles 32-25-01 322407

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Table 4: EASA Life Limited Components Chapter 32 Nose Landing Gear Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref 1159LM40588-19 Nose Landing Gear Upper Drag Brace Pin - Discard 1 4000 flight cycles 32-24-03 322411 1159LM50587 Nose Landing Gear Lower Drag Brace Pin - Discard 1 16,000 flight cycles 32-24-03 322413 1159LM40583 Nose Landing Gear Actuator Attach Pins - Discard 1 26,200 flight cycles 32-38-03 322415 1159LM50568 Nose Landing Gear Strut / Trunnion Pin - Discard 1 16,000 flight cycles 32-25-01 322417 1159SCL500-23 Nose Wheel Steering Collar Assembly

- Discard 1 16,000 flight cycles 32-52-03 325205 Table 5: FAA Life Limited Components Chapter 32 Main Landing Gear Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref 1159L50001 Main Landing Gear Strut Assembly - Discard MRB Ref: 32-10-01-05 2 20,000 flight cycles 32-10-00 321007 321008

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Table 5: FAA Life Limited Components Chapter 32 Main Landing Gear Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref 1159HM20178 Main Gear Door Actuator End Cap Fitting - Discard NOTE: For aircraft with landing gear door actuator that has more than 9500 flight cycles since new or which the flight cycles since new cannot be determined, accomplish initial discard of landing gear door actuator end cap within 12 months from original issue date of CB 218 and every 9500 flight cycles thereafter.

For aircraft with landing gear door actuator that has less than 9500 flight cycles since new, accomplish landing gear door actuator end cap discard at 9500 flight cycles and every 9500 flight cycles thereafter.

For main gear door actuator end cap fittings that are not serialized, the end cap fitting must be tracked by the main gear door actuator part number and serial number until end cap is replaced with a serialized part.

2 Note 32-32-04 323045 323046 1159SCL502 Main Landing Gear Side Brace - Discard 2 20,000 flight cycles 32-14-01 321407 321408 1159LM50126 Main Gear Structural Post - Discard 2 20,000 flight cycles 32-10-00 321009 321010 1159LM50140 Main Landing Gear Axle Fitting - Discard 2 20,000 flight cycles 32-13-01 321309 321310 1159L50100 Main Gear Shock Absorber - Discard 2 20,000 flight cycles 32-12-01 321203 321204

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Table 5: FAA Life Limited Components Chapter 32 Main Landing Gear Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref 1159LM50112-11 Main Gear Shock Strut Cylinder Nut - Discard NOTE: Applies to Aircraft 501 thru Aircraft 547.

25 0 0 0 flight cycles 32-12-01 321215 321216 1159LM50112-13 Main Gear Shock Strut Cylinder Nut - Discard 2 20,000 flight cycles 32-12-01 321215 321216 1159LM50853 Main Landing Gear Trunnion Pin - Discard 2 20,000 flight cycles 32-15-01 321013 321014 1159SCL566-13 Main Landing Gear Trunnion Pin - Discard NOTE: Aft trunnion fuse pin.

2 20,000 flight cycles 32-15-01 321017 321018 1159LM50137 Main Landing Gear Spindle Pins - Discard 2 20,000 flight cycles 32-14-03 321021 321022 1159LM50164 Main Landing Gear Side Brace Lower Attach Pin - Discard 2 20,000 flight cycles 32-14-03 321403 321404 1159LM50148 Main Landing Gear Axle Fitting Attach Pin - Discard 2 20,000 flight cycles 32-13-01 321305 321306 1159LM50147 Main Gear Shock Strut Attachment Pin - Discard 4 20,000 flight cycles 32-12-01 321207 321208 321211 321212 Table 6: EASA Life Limited Components Chapter 32 Main Landing Gear Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref 1159L50001 Main Landing Gear Strut Assembly - Discard 2 16,000 flight cycles 32-10-00 321007 321008 1159SCL502 Main Landing Gear Side Brace - Discard 2 16,000 flight cycles 32-14-01 321407 321408 1159LM50126 Main Gear Structural Post - Discard 2 16,000 flight cycles 32-10-00 321009 321010 1159LM50140 Main Landing Gear Axle Fitting - Discard 2 16,000 flight cycles 32-13-01 321309 321310 1159L50100 Main Gear Shock Absorber - Discard 2 16,000 flight cycles 32-12-01 321203 321204

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Table 6: EASA Life Limited Components Chapter 32 Main Landing Gear Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref 1159LM50112-11 Main Gear Shock Strut Cylinder Nut - Discard NOTE: Applies to Aircraft 501 thru Aircraft 547.

24 0 0 0 flight cycles 32-12-01 321215 321216 1159LM50112-13 Main Gear Shock Strut Cylinder Nut - Discard 2 16,000 flight cycles 32-12-01 321215 321216 1159LM50853 Main Landing Gear Trunnion Pin - Discard NOTE: Forward trunnion pin.

2 16,000 flight cycles 32-15-01 321013 321014 1159SCL566-13 Main Landing Gear Trunnion Pin - Discard NOTE: Aft trunnion (fuse) pin.

2 16,000 flight cycles 32-15-01 321017 321018 1159LM50137 Main Landing Gear Spindle Pins - Discard 2 16,000 flight cycles 32-14-03 321021 321022 1159LM50164 Main Landing Gear Side Brace Lower Attach Pin - Discard 2 16,000 flight cycles 32-14-03 321403 321404 1159LM50148 Main Landing Gear Axle Fitting Attach Pin - Discard 2 16,000 flight cycles 32-13-01 321305 321306 1159LM50147 Main Gear Shock Strut Attachment Pin - Discard 4 16,000 flight cycles 32-12-01 321207 321208 321211 321212 Table 7: FAA and EASA Life Limited Components Chapter 49 Airborne Auxiliary Power Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref WK3840141 APU 1st Stage Turbine Rotor Assembly - Discard MRB Ref: 49-20-00-01 1 10,000 APU hours 49-23-00 492002 WE897994 2nd Stage Turbine Rotor - Discard MRB Ref: 49-20-00-01 1 10,000 APU hours 49-23-00 492003 WB3822380 WB3822573 Impeller - Discard MRB Ref: 49-20-00-01 1 10,000 APU hours 49-23-00 492001

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Table 8: FAA and EASA Life Limited Components Chapter 53 Fuselage Airworthiness Limitations Instructions Part Number Nomenclature Qty Discard ATARef CMP Ref 1159BM50024 Cockpit Center Post - Discard 1 16,000 flight cycles 53-17-00 531730 1159BM50025-11 1159BM50025-12 1159BM50025-13 1159BM50025-14 1159BM50025-15 1159BM50025-16 Cockpit Side Post - Discard NOTE: Applies to Aircraft 501 thru Aircraft 599.

2 10,000 flight cycles 53-17-00 531733 531734 1159BM50025-1 1159BM50025-2 1159BM50025-3 1159BM50025-4 1159BM50025-5 1159BM50025-6 Cockpit Side Post - Discard NOTE: Applies to Aircraft 600 and subsequent.

2 16,000 flight cycles 53-17-00 531733 531734 1159BM50033 Cockpit Lower Rail Fastener - Replacement NOTE: Modification of lower rail fastener replacement.

2 15,000 flight cycles 53-17-00 531741 531742 1159B50042-61 Cockpit Pressure Floor Angle - Discard NOTE: Applies to Aircraft 501 thru Aircraft 633.

1 12,000 flight cycles 53-10-00 531744 1159BM50913-13 1159BM50913-14 1159BM50913-15 1159BM50913-16 FS 465 Mainframe Fittings - Discard NOTE: Left mainframe fittings.

Applies to Aircraft 505 and subsequent.

2 16,000 flight cycles 53-34-00 531747 531749 1159BM50914-13 1159BM50914-14 1159BM50914-15 1159BM50914-16 FS 465 Mainframe Fittings - Discard NOTE: Right mainframe fittings.

Applies to Aircraft 505 and subsequent.

2 16,000 flight cycles 53-34-00 531748 531750 1159BM50915-17 1159BM50915-18 1159BM50915-19 1159BM50915-20 FS 576 Mainframe Fittings - Discard NOTE: Left mainframe fittings.

Applies to Aircraft 505 and subsequent.

2 16,000 flight cycles 53-34-00 531753 531754 1159BM50916-17 1159BM50916-18 1159BM50916-19 1159BM50916-20 FS 576 Mainframe Fittings - Discard NOTE: Right mainframe fittings.

Applies to Aircraft 505 and subsequent.

2 16,000 flight cycles 53-34-00 531757 531758

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C. Principal Structural Elements Reporting Procedure Reporting of inspection results is required to ensure continued airworthiness of the fleet is maintained. This procedure contains the necessary reporting information which is to be used whenever a principal structural element inspection is accomplished.

NOTE: Inspection results, both positive and negative, are to be reported to Gulfstream Maintainability Engineering. Complete Table 9 with inspection results. Return completed table to Gulfstream Maintainability Engineering (for contact information see Description of the Subsections, 05-00-00, Time Limits / Maintenance Checks ). Discrepancies must be reported within 24 hours. Discrepancies must be accompanied by digital photograph(s).

Table 9: PSE Inspection Results PSE Number A/C Serial Number A/C Tail Number Part Number(s) [if applicable] A/C Hours A/C Landings Date of Inspection Discrepancies Found Yes (If yes information below must be completed.) No Location

FS BL WL Size Orientation D. Principal Structural Element Inspection Requirements Table 11 contains a list of PSE along with the speci fic description, initial threshold, repeat interval and Computerized Maintenance Program (CMP) Reference.

All PSE inspections (with the exception of those that are satisfied by an MRB task) must be tracked by the appropriate time measurement. Airframe PSE items will reflect the total flight/hours and flight cycles of the aircraft. Line Replaceable Unit (LRU) PSE items will be tracked by the total times (Time Since New / Cycles Since New, TSN/CSN) of the component.

NOTE: For PSE inspections with an MRB reference listed as inspection interval, see Scheduled Maintenance, 05-20-00, Scheduled Maintenance Checks inspection table with same MRB reference to determine frequency.

For inspections with a reduced recurring interval (i.e., 10,000 initial / 2,000 recurring) the next due inspection is dependent upon the initial inspection accomplishment. See Figure 1.

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0 3000 10,000 12,000 14,000 For initial compliance early at 3000 hours having 7000 hours remaining until the original threshold interval, the next requirement is at the original 10,000 hours then recurring at 2000 hours.

0 8500 10,500 12,500 14,500 NOTE:

NOTE:

10,000 INITIAL 2000 RECURRING (EARLY COMPLIANCE = 7000) 10,000 INITIAL 2000 RECURRING (EARLY COMPLIANCE = 1500) For initial compliance early at 8500 hours having less than 2000 hours remaining until the original due time, the next requirement is at 10,500 hours and all subsequent requirements are recurring at 2000 hours.

If time remaining after early compliance is greater than the recurring interval, the next inspection due is at the original initial due time.

If time remaining after early compliance is less than the recurring interval, the next inspection due is at the recurring interval from the actual accomplished point.

TIL-78178B Early Inspection Compliance Figure 1

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Table 11: Principal Structural Elements PSE Number Description Aircraft Maintenance Manual Procedure NDI Type Inpection Interval ATA Ref CMP RefInitial Repeat 32-25-001 Nose Landing Gear Trunnion Fitting Lug Nose Gear Trunnion Assembly - Detailed Inspection Eddy current 16000 flight cycles 6000 flight cycles 32-24-01 322501 53-11-101 Cockpit Window Skins Cockpit Window Skins - NDT Inspection Eddy current 6400 flight cycles 3200 flight cycles 53-11-00 531115 531116 53-11-200 Nose Landing Gear Skin Cutout Nose Landing Gear Skin Cutout - NDT Inspection NOTE: Applies to Aircraft 501 thru Aircraft 530.

Eddy current 8000 flight cycles 4650 flight cycles 53-10-00 531016 53-11-200 Nose Landing Gear Skin Cutout Nose Landing Gear Skin Cutout - NDT Inspection NOTE: Applies to Aircraft 531 and subsequent.

Eddy current 8000 flight cycles 8000 flight cycles 53-10-00 531016 53-11-201 Cockpit Skin Splices External Fuselage - General Visual Inspection NOTE: See PSE 53-31-100 Visual Note Note 53-00-00 531068 53-12-003 FS 119 Frame Bulkhead Installation FS 119 - Detailed Inspection Visual MRB No. 53.12.04 / 01 53-12-00 531215

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