srm55-30-00 12.0.0 - air cargo carriers 55/55-30-00.pdf · srm55-30-00 14.0.0.0 vertical stabiliser...

Jun 30/0155-30-00 EFFECTIVITY: All

zSD3-60 STRUCTURAL REPAIR MANUAL

SRM55-30-00 12.0.0.0VERTICAL STABILIZER (FIN) - STRUCTURAL IDENTIFICATION

1. General

This section identifies the skin panels and structural components of the vertical stabilizer. Details are given of specific location; material specifications and related commercial designations; material thicknesses, limits of allowable damage, and approved repairs.

2. Construction

The fin is of conventional all metal construction with L/E, front and rear spars positioned at 7%, 27.336% and 51.271% chord respectively.

The L/E spar consists of 2024-T3 flat webs with 2024-T3510 T section booms.

The front and rear spar consists of 2024-T3 flat webs and 2024-T3510 boom angles. These spars are extended and locally reinforced with 7075-T351 fail safe booms for attachment to the sloping bulkheads within the fuselage body.

The rear spar stops at rib 11 to cater for the rudder horn but structural continuity is obtained through a channel section sub spar which continues stringers 4 between rib 11 and end rib.

Ribs are identified by a numbering system and are positioned either horizontally or at 90° to the front spar and are intercostal with the spars.

Except for the root rib, which has 2024-T3 flat webs with 2024-T42 boom angles forward and 2024-T3510 boom angles aft of front spar, ribs are of 2024-T42 material and consist of flanged diaphragms and stiffeners with cutouts and anti-crack angles at stringer locations.

Ribs 4 and 10 are reinforced with 7075-T7351 foot fittings to carry the 7075-T7351 fail safe hinge brackets which bolt to the rear spar.

Rib 13 and tip rib have full aerofoil section and support the Kevlar fin tip.

Stringers are 2024-T42 material and are top-hat section with the exception of stringer 1, 4 and 5 which have a 'Z' section above rib 5.

Side skins are chemi-etched 2024-T3 with a joint along rib 5 and the leading edge skin is heavy gauge 2024-T3 as a protection against bird strike.

The main fore and aft shear loads are transmitted to the fuselage through A151-4340 125 K.S.I. shear pin housed in 7075-T7351 retainer.

The shrouds are of Kevlar construction supported with 2024-T42 channels.

3. Structural Identification

The following pages contain diagrams and text to define the components, skin materials and thicknesses, that comprise the vertical stabiliser.



G.A. of Vertical StabiliserFigure 1


zSD3-60 STRUCTURAL REPAIR MANUALSD3-60 STRUCTURAL REPAIR MANUAL

ITEM NO. MATERIAL THICKNESS/

GAUGE PART NO. DESCRIPTION

1 SD3-32-6001 G.A. of Fin2 SD3-32-6050 Rudder Assy Compete3 SD3-32-6368 G.A. Rudder Tab4 SD3-32-6290 Fin Tip Fairing5 SD3-32-6113 Installation of Dorsal

Key to Figure 1



G.A. of FinFigure 2





1 SD3-32-6001 G.A. of Fin2 SD3-32-6005 Assy of Fin Structure3 SD3-32-6002 Skin Assy4 SD3-32-6290 Fin Tip Fairing5 SD3-32-6586 Horn Shroud Sub Assy6 SD3-32-6594 Horn Shroud Side Panel7 SD3-32-6039 Left Upper Shroud Panel8 SD3-32-6040 Right Upper Shroud Panel9 SD3-32-6041 Left Upper Nose Shroud

10 SD3-32-6042 Right Upper Nose Shroud11 SD3-32-6599 Centre Shroud Sub Assy12 SD3-32-6609 Centre Shroud Side Panel13 SD3-32-6583 Lower Shroud Sub Assy14 SD3-32-6584 Lower Shroud Panel15 SD3-32-6086 L/E Skin Assy16 SD3-32-6539 Left Panel - Upper Hinge17 SD3-32-6540 Right Panel - Upper Hinge18 SD3-32-6247 Left Panel - Lower Hinge19 SD3-32-6248 Right Panel - Lower Hinge20 SD3-32-6385 Shear Pin Retainer

Key to Figure 2



Assy of fin structureFigure 3





1 SD3-32-6005 ASSY OF FIN STRUCTURE2 SD3-32-6111 ASSY OF 7% L/EDGE SPAR3 SD3-32-6009 ASSY OF FRONT SPAR4 SD3-32-6010 ASSY OF REAR SPAR5 SD3-32-6121 ASSY OF FIN SUB SPAR6 SD3-32-6146 ASSY OF ROOT RIB FWD7 SD3-32-6147 ASSY OF ROOT RIB AFT8 SD3-32-6011 ASSY OF RIB19 SD3-32-6012 ASSY OF RIB 2 FWD

10 SD3-32-6013 ASSY OF RIB 2 AFT11 SD3-32-6014 ASSY OF RIB 3 FWD12 SD3-32-6015 ASSY OF RIB 3 AFT13 SD3-32-6016 ASSY OF RIB 4 FWD14 SD3-32-6017 ASSY OF RIB 4 AFT15 SD3-32-6018 ASSY OF RIB 5 FWD16 SD3-32-6019 ASSY OF RIB 5 AFT17 SD3-32-6020 ASSY OF RIB 6 FWD18 SD3-32-6021 ASSY OF RIB 6 AFT19 SD3-32-6022 ASSY OF RIB 7 FWD20 SD3-32-6023 ASSY OF RIB 7 AFT21 SD3-32-6024 ASSY OF RIB 8 FWD22 SD3-32-6025 ASSY OF RIB 8 AFT23 SD3-32-6026 ASSY OF ASSY OF RIB 9 FWD24 SD3-32-6027 ASSY OF ASSY OF RIB 9 AFT25 SD3-32-6028 ASSY OF RIB 10 FWD26 SD3-32-6029 ASSY OF RIB WAFT27 SD3-32-6140 ASSY OF RIB 1128 QQ-A-250/5

2024-T3.050" DOUBLER

Key to Figure 3



29 S03-32-6141 ASSY OF RIB 12 FWD

30 QQ-A-250/52024-T42

.025" ASSY OF RIB 12 AFT

31 SD3-32-6143 ASSY OF RIB 13 FWD32 QQ-A-250/5

2024-T42.025" ASSY OF RIB 13 CENTRE

33 SD3-32-6145 ASSY OF RIB 13 AFT34 QQ-A-250/5

2024-T42.050" ASSY OF TIP RIB FWD

35 ASSY OF TIP RIB AFT36 QQ-A-25015

2024-T42.025" DIAPHRAGM

37 QQ-A-250/52024-T42

.032" SUPPORT BKT.-SHROUD

38 QQ-A-250/52024-T3

.032" DOUBLER

39 QQ-A-250/52024-T42

.032" SUPPORT BRACKET

40 QQ-A-250/52024-T42

.032" MTG DIAPHRAGM LWR SHROUD

41 QQ-A-250/52024-T42

.032" MTG CHANNEL LWR SHROUD



Key to Figure 3 (Continued)



Fin skin assyFigure 4 (Sheet 1)



Side skin panelsFigure 4 (Sheet 2)





1 SD3-32-6002 SKIN ASSEMBLY2 SD3-32-6171

SD3-32-6172SKIN & STRINGER ASSY - LOWER

3 SD3-32-6173SD3-32-6174

SKIN & STRINGER ASSY - UPPER

4 .032" QQ-A-250/52024-T42

STRINGERS - UPPER

5 .032" QQ-A-250/52024-T42

RABBIT STRIPS

6 .032" QQ-A-250/52024-T3

RABBIT STRIPS

7 .040" QQ-A-250/52024-T42

STRINGERS-LOWER

8 .050" QQ-A-250/52024-T42

RABBIT STRIPS

9 .050" QQ-A-250/52024-T3

RABBIT STRIPS

10 .050" QQ-A-250/52024-T3

BUTTSTRAPS

11 .063" QQ-A-250/52024-T3

FIN SKIN-UPPER

12 .120" QQ-A-250/52024-T3

FIN SKIN-LOWER

13 .020" QQ-A-250/52024-T42

WEDGE-T/EDGE

14 .250" QQ-A-250/52024-T351

STRAPS FAIL SAFE

Key to Figures 4

Jun 30/0155-30-00 Page 101EFFECTIVITY: All


SRM55-30-00 14.0.0.0VERTICAL STABILISER - ALLOWABLE DAMAGE

1. General

The following pages define the allowable damage limitations for the aircraft vertical stabiliser.

The limitations are given in tabular form as follows:-

Vertical Stabiliser Skins. Refer to Table 101.

Vertical Stabiliser Spar Web and Rib Web. Refer to Table 102.

Definitions of types of damage. Refer to 51-10-00, pb1.

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NOTE: ts = thickness of skintd = thickness of doubler

TYPE OF DAMAGE'D'

MAXDEPTH

'L'LENGTH

MINEDGEDIST

INCHES

MIN DIMFROM

LINES OF FASTENERS

OTHER LIMITATIONS REMEDIAL ACTION REQUIRED

Isolated Dents(1) Basic skin(2) Basin skin and doubler

1.50 x ts 1.50 x td

10D min 10D min

1.001.00

1.001.00

Dents smooth and free from cracksFor skin with bonded doubler no delamination is allowed.No dents allowed in skins at rib stations along spar flanges or stringers.

If beyond limits repair is required.

Gouges, nicks, scratches and surface corrosion(1) Basic skin(2) Basic skin and doubler

0.10 x tb 0.10 x tb

0.50 max0.50 max

--

--

Must not extend over more than two adjacent fasteners, except where damage does not exceed depth of cladding.

Clean up damageRefer to 51-10-00, pb1.If beyond limits repair is required.

Punctures - - - - - Repair is required.

Cracks - - - - - Repair is required.

Allowable damage - Vertical stabiliser - skinTable 101

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TYPE OF DAMAGE'D'

MAXDEPTH

'L'LENGTH

MINEDGEDIST

INCHES

MIN DIMFROM

LINES OF FASTENERS

OTHER LIMITATIONS REMEDIAL ACTION REQUIRED

Isolated Dents(1) Spar web(2) Rib web

1.50 x ts2.00 x tr

10D min10D min

--

1.000.75

Dents smooth and free of cracks.

If beyond limitrepair is required.

Nicks, scratches, surface corrosion and abrasions(1) Spar web(2) Rib web

0.10 x ts 0.10 x tr

0.50 max 0.50 max

--

--

Must not extend over more than two adjacent fasteners, except where damage does not exceed depth of cladding.

Clean up damageRefer to 51-10-00, pb1.If beyond limitsrepair is required.

Punctures - - - - - Repair is required.

Cracks(a) Radiating from lightening holes(b) Radiating from bend relief(c) Others

Refer to 51-70-00, pb1.

Refer to 51-70-00, pb1.

Repair is required.

Allowable damage - Vertical stabiliser - Spar web and rib webTable 102

55-30-00 Page 201EFFECTIVITY: All


SRM55-30-00 15.0.0.0VERTICAL STABILISER (FIN) - REPAIRS

1. General

The following pages contain details of approved repairs to the vertical stabiliser.

Reference must also be made to CHAPTER 51, for further information regarding structural damage and repair practices of a general nature.

It is to be noted that due to the similarity in construction of the Vertical and Horizontal Stabilisers, some of the approved repairs are applicable to both assemblies.

CAUTION: THESE REPAIRS MAY AFFECT THE FATIGUE CRITICAL BASELINE STRUCTURE.REFER TO 51-00-01 FOR FURTHER INFORMATION ON FCBS AND PROCEDURES TO BE FOLLOWED, PRIOR TO INCORPORATING ANY OF THESE REPAIRS.

2. List of approved repairs for Vertical Stabiliser.

- Skin Repairs - patches. Refer to 55-10-00, Figure 201.- Skin Repair. Refer to 55-10-00, Figure 202.- Stringer Repairs. Refer to 55-30-00, Figure 201.- Leading Edge Repair, Fin. Refer to 55-10-00, Figure 202.- Typical Rib Repairs. Refer to 55-10-00, Figure 205.- Fin Butt Strap Loose Rivets. Refer to Figure 203.- Rear Spar on Fin. Refer to Figure 204.

Alternative materials. Refer to 51-31-00, pb1.

Alternative fasteners. Refer to 51-40-00, pb1.

Feb 01/10



Stringer repairsFigure 201



Leading Edge Repairs - FinFigure 202



Repair to Fin Buttstraps in way of Loose RivetingFigure 203



Repair to R/Spar, Fin (Lower shroud mounting)Figure 204

srm55-30-00 12.0.0 - air cargo carriers 55/55-30-00.pdf · srm55-30-00 14.0.0.0 vertical stabiliser...

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